Adjustable arthroplasty devices, systems, and methods

Abstract

An arthroplasty system for replacing a native articular surface on a bone may include an arthroplasty prosthesis (100) and a bone anchoring component (200). An arthroplasty prosthesis may include a joint-facing side (1) having an articular surface and a bone-facing side (2) having a first adjustable attachment feature (10). The bone anchoring component may include a bone engaging surface (4) securable to a resected surface of the bone and a second adjustable attachment feature (20). The first adjustable attachment feature may be configured to movably mate with the second adjustable attachment feature to movably couple the bone anchoring component to a bone-facing side of an arthroplasty prosthesis.

Description

Technical Field

[0001] The present disclosure relates to arthroplasty devices, systems and methods. More particularly, the present disclosure relates to adjustable arthroplasty devices, systems and methods for surgical repair of diseased joints. Background Art

[0002] An arthroplasty procedure is a surgical procedure in which one or more articular surfaces of a joint are replaced with a prosthetic articular surface. Such procedures are becoming increasingly common, particularly for the knee.

[0003] For successful knee arthroplasty, it is important that the knee implant is correctly oriented and placed relative to the patient's bones to remain in place, avoid subsequent complications, and maintain the necessary wear characteristics. In addition, it is desirable that the knee arthroplasty procedure be performed quickly, smoothly, and at a relatively low cost. Many existing knee arthroplasty implants, systems, and methods are time-consuming to implant because they require complex, expensive, and time-consuming trial fitting instruments and associated trial fitting procedures.

[0004] Therefore, infinitely adjustable arthroplasty devices, systems, and methods that could eliminate the need for complex, expensive, and time-consuming trial-fit instruments and procedures would be desirable. Summary of the invention

[0005] The various arthroplasty devices, systems and methods of the present disclosure were developed in response to the prior art, and in particular in response to problems and needs in the art that have not been fully addressed by currently available arthroplasty devices, systems and methods. In some embodiments, the adjustable arthroplasty devices, systems and methods of the present disclosure may provide improved surgical procedures and repair of diseased joints.

[0006] In some embodiments, an arthroplasty system for replacing a natural joint surface on a bone may include an arthroplasty prosthesis and a bone anchoring component. The arthroplasty prosthesis may include a joint-facing side having an articular surface and a bone-facing side having a first adjustable attachment feature. The bone anchoring component may include a bone-engaging surface that can be fixed to a resected surface of a bone and a second adjustable attachment feature. The first adjustable attachment feature may be configured to movably cooperate with the second adjustable attachment feature to movably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0007] In some embodiments, the first adjustable attachment feature may include a rotation plate coupled to the bone-facing side of the arthroplasty prosthesis, and the second adjustable attachment feature may include a rotation recess formed in the bone anchoring component and configured to receive the rotation plate therein to rotatably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0008] In some embodiments, the first adjustable attachment feature may include a rotation recess formed in the bone-facing side of the arthroplasty prosthesis, and the second adjustable attachment feature may include a rotation plate coupled to the bone anchoring component and configured to cooperate with the rotation recess to rotatably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0009] In some embodiments, the first adjustable attachment feature may include a translation member connected to the bone-facing side of the arthroplasty prosthesis, and the second adjustable attachment feature may include a translation connector configured to be movably connected to the translation member and enable the bone anchoring component to: translate along the translation member in a first direction relative to the bone-facing side of the arthroplasty prosthesis, and translate along the translation member in a second direction opposite to the first direction relative to the bone-facing side of the arthroplasty prosthesis.

[0010] In some embodiments, the first adjustable attachment feature may include a translation coupler on the bone-facing side of the arthroplasty prosthesis, and the second adjustable attachment feature may include a translation member configured to be movably coupled to the translation coupler and to enable the bone anchoring component to: translate along the translation coupler in a first direction relative to the bone-facing side of the arthroplasty prosthesis, and translate along the translation coupler in a second direction opposite to the first direction relative to the bone-facing side of the arthroplasty prosthesis.

[0011] In some embodiments, the first adjustable attachment feature may include a rotational recess formed in the bone-facing side of the arthroplasty prosthesis, and the second adjustable attachment feature may include a rotational plate coupled to the bone anchoring component and configured to cooperate with the rotational recess to rotatably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis. The rotational plate may also include a translation member coupled to the rotational plate. The bone anchoring component may also include a translational coupler configured to movably couple with the translation member and enable the bone anchoring component to: translate along the translation member in a first direction relative to the rotational plate and translate along the translation member in a second direction opposite to the first direction relative to the rotational plate.

[0012] In some embodiments, the arthroplasty prosthesis may include a tibial baseplate having a tibial articular surface on a joint-facing side of the tibial baseplate and the bone anchoring component may include at least one of: a keel, a stem, a sleeve, an adapter, and a filler block.

[0013] In some embodiments, the arthroplasty prosthesis may include a femoral prosthesis having a femoral articular surface on a joint-facing side of the femoral prosthesis, and the bone anchoring component may include at least one of: a keel, a stem, a sleeve, an adapter, and a filler block.

[0014] In some embodiments, a knee arthroplasty system for replacing a natural articular surface on a bone of a knee joint may include a knee arthroplasty prosthesis, a primary bone anchoring component, and a revision bone anchoring component. The knee arthroplasty prosthesis may include a joint-facing side having an articular surface and a bone-facing side having a prosthesis attachment feature. The primary bone anchoring component may include a primary bone engagement surface and a primary attachment feature that can be fixed to the resected surface of the bone. When the primary bone anchoring component is anchored to the bone, at least a majority of the primary bone anchoring component may be located outside the intramedullary canal of the bone. The revision bone anchoring component may include a revision attachment feature and a rod having a distal portion that can be fixed within the intramedullary canal of the bone when the revision bone anchoring component is anchored to the bone. The prosthesis attachment feature may be configured to removably couple the primary bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis by cooperating with the primary attachment feature. The prosthesis attachment feature may be configured to removably couple the revision bone anchor component to the bone-facing side of the knee arthroplasty prosthesis by mating with the revision attachment feature.

[0015] In some embodiments, the prosthesis attachment feature may include a prosthesis plate coupled to the bone-facing side of the knee arthroplasty prosthesis. The primary attachment feature may include a primary recess formed in the primary bone anchoring component and configured to removably mate with the prosthesis plate, and the revision attachment feature may include a revision recess formed in the revision bone anchoring component and configured to removably mate with the prosthesis plate.

[0016] In some embodiments, the prosthesis attachment feature may include a prosthesis recess formed in the bone-facing side of the knee arthroplasty prosthesis. The primary attachment feature may include a primary plate coupled to the primary bone anchoring component and configured to removably mate with the prosthesis recess, and the revision attachment feature may include a revision plate coupled to the revision bone anchoring component and configured to removably mate with the prosthesis recess.

[0017] In some embodiments, the prosthesis attachment feature may include a prosthesis translating member on the bone-facing side of the knee arthroplasty prosthesis. The primary attachment feature may include a primary translation coupler configured to removably engage the prosthesis translating member, and the revision attachment feature may include a revision translation coupler configured to removably engage the prosthesis translating member.

[0018] In some embodiments, the prosthesis attachment feature may include a prosthesis translation coupler on the bone-facing side of the knee arthroplasty prosthesis. The primary attachment feature may include a primary translation member configured to removably engage the prosthesis translation coupler, and the revision attachment feature may include a revision translation member configured to removably engage the prosthesis translation coupler.

[0019] In some embodiments, a knee arthroplasty prosthesis may include a tibial baseplate having a tibial articular surface on a joint-facing side of the tibial baseplate, and the primary bone anchoring component may include at least one of a short stem, a keel, a sleeve, an adapter, and a filler block.

[0020] In some embodiments, the revision bone anchor component may further include at least one of: a keel, a sleeve, an adapter, and a filler block.

[0021] In some embodiments, the knee arthroplasty prosthesis may include a femoral prosthesis having a femoral articular surface on a joint-facing side of the femoral prosthesis, and the primary bone anchoring component may include at least one of a short stem, a keel, a sleeve, an adapter, and a filler block.

[0022] In some embodiments, the revision bone anchor component may further include at least one of: a keel, a sleeve, an adapter, and a filler block.

[0023] In some embodiments, a knee arthroplasty system for replacing a natural articular surface on a bone of a knee joint may include a knee arthroplasty prosthesis, a primary bone anchoring component, and a revision bone anchoring component. The primary bone anchoring component may include a joint-facing side having an articular surface and a bone-facing side having a prosthesis attachment feature formed thereon. The primary bone anchoring component may include a primary bone-engaging surface that can be fixed to a resected primary surface of the bone and a primary attachment feature. The revision bone anchoring component may include a revision bone-engaging surface that can be fixed to a resected revision surface of the bone and a revision attachment feature. The prosthesis attachment feature may be configured to cooperate with any one of the primary attachment feature and the revision attachment feature to couple any one of the primary bone anchoring component and the revision bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis. The prosthesis attachment feature may be configured to cooperate with at least one of the primary attachment feature and the revision attachment feature rotatably and / or translatably.

[0024] In some embodiments, the prosthesis attachment feature may include a prosthesis plate coupled to the bone-facing side of the knee arthroplasty prosthesis. The primary attachment feature may include a primary recess formed in the primary bone anchoring component and configured to rotatably mate with the prosthesis plate, and the revision attachment feature may include a revision recess formed in the revision bone anchoring component and configured to rotatably mate with the prosthesis plate.

[0025] In some embodiments, the prosthesis attachment feature may include a prosthesis recess formed in the bone-facing side of the knee arthroplasty prosthesis. The primary attachment feature may include a primary plate coupled to the primary bone anchoring component and configured to rotatably mate with the prosthesis recess, and the revision attachment feature may include a revision plate coupled to the revision bone anchoring component and configured to rotatably mate with the prosthesis recess.

[0026] In some embodiments, the prosthesis attachment feature may include a prosthesis translating member on the bone-facing side of the knee arthroplasty prosthesis. The primary attachment feature may include a primary translation coupler configured to translationally engage with the prosthesis translating member, and the revision attachment feature may include a revision translation coupler configured to translationally engage with the prosthesis translating member.

[0027] In some embodiments, the prosthesis attachment feature may include a prosthesis translation coupler on the bone-facing side of the knee arthroplasty prosthesis. The primary attachment feature may include a primary translation member configured to translationally engage with the prosthesis translation coupler, and the revision attachment feature may include a revision translation member configured to translationally engage with the prosthesis translation coupler.

[0028] In some embodiments, the prosthesis attachment feature may include a prosthesis recess formed in the bone-facing side of the knee arthroplasty prosthesis, and the primary attachment feature may include a primary plate coupled to the primary bone anchoring component and configured to rotatably engage with the prosthesis recess to rotatably couple the primary bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis. The primary plate may also include a primary translation member coupled to the primary plate. The primary bone anchoring component may also include a primary translation coupler configured to translatably engage with the primary translation member and enable the primary bone anchoring component to: translate along the primary translation member in a first direction relative to the primary plate, and translate along the primary translation member in a second direction opposite to the first direction relative to the primary plate.

[0029] In some embodiments, the prosthesis attachment feature may include a prosthesis recess formed in the bone-facing side of the knee arthroplasty prosthesis, and the revision attachment feature may include a revision plate coupled to the revision bone anchoring component and configured to rotatably engage with the prosthesis recess to rotatably couple the revision bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis. The revision plate may also include a revision translation member coupled to the revision plate. The revision bone anchoring component may also include a revision translation coupler configured to translatably engage with the revision translation member and enable the revision bone anchoring component to: translate along the revision translation member in a first direction relative to the revision plate, and translate along the revision translation member in a second direction opposite to the first direction relative to the revision plate.

[0030] In some embodiments, a knee arthroplasty prosthesis may include a tibial baseplate having a tibial articular surface on a joint-facing side of the tibial baseplate.

[0031] In some embodiments, a knee arthroplasty prosthesis may include a femoral prosthesis having a femoral articular surface on a joint-facing side of the femoral prosthesis.

[0032] In some embodiments, the primary bone anchoring component may include at least one of: a short shaft, a keel, a sleeve, an adapter, and a filler block.

[0033] In some embodiments, when the primary bone anchoring member is anchored to the bone, at least a majority of the primary bone anchoring member may be located outside of the intramedullary canal of the bone.

[0034] In some embodiments, the revision bone anchoring member may include a rod. When the revision bone anchoring member is anchored to the bone, a distal portion of the rod may be configured to be fixed within the intramedullary canal of the bone.

[0035] In some embodiments, the revision bone anchor component may further include at least one of: a keel, a sleeve, an adapter, and a filler block.

[0036] In some embodiments, an arthroplasty system for replacing a natural joint surface on a bone may include an arthroplasty prosthesis having a joint-facing side having an articular surface and a bone-facing side having a prosthesis attachment feature. The arthroplasty system may also include a bone anchoring component having a bone-engaging surface that can be fixed to a resected surface of a bone and a component attachment feature. The component attachment feature may be configured to removably cooperate with the prosthesis attachment feature to removably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis, and the prosthesis attachment feature may include a circular shape having a diameter of at least 10 mm.

[0037] In some embodiments, the prosthesis attachment feature may include a first circular shape having a first diameter of at least 10 mm, the component attachment feature may include a second circular shape having a second diameter of at least 10 mm, and the prosthesis attachment feature and the component attachment feature may include circular shapes that complement each other.

[0038] In some embodiments, the diameter of the circular shape may be at least 20 mm.

[0039] In some embodiments, the diameter of the circular shape may be at least 30 mm.

[0040] In some embodiments, the prosthesis attachment feature may include a prosthesis plate coupled to the bone-facing side of the arthroplasty prosthesis, and the component attachment feature may include a component recess configured to removably mate with the prosthesis plate to removably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0041] In some embodiments, the prosthesis attachment feature may include a prosthesis recess formed in the bone-facing side of the arthroplasty prosthesis, and the component attachment feature may include a component plate coupled to the bone anchoring component and configured to removably engage the prosthesis recess to removably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0042] In some embodiments, the arthroplasty prosthesis may include a femoral prosthesis having a femoral articular surface on a joint-facing side of the femoral prosthesis.

[0043] In some embodiments, an arthroplasty prosthesis may include a tibial baseplate having a tibial articular surface on a joint-facing side of the tibial baseplate.

[0044] In some embodiments, the tibial baseplate may include at least one first anti-rotation feature formed on the bone-facing side of the tibial baseplate, and the bone anchoring component may include at least one second anti-rotation feature configured to removably mate with the first anti-rotation feature and resist rotation of the bone anchoring component relative to the tibial baseplate.

[0045] In some embodiments, the bone anchoring component may include at least one of: a keel, a rod, a sleeve, an adapter, and a filler block.

[0046] In some embodiments, a method for replacing a natural joint surface on a bone may include: movably engaging a first adjustable attachment feature of an arthroplasty prosthesis with a second adjustable attachment feature of a bone anchoring component to movably connect the bone anchoring component to a bone-facing side of the arthroplasty prosthesis; securing a bone-engaging surface of the bone anchoring component to a resected surface of the bone; and replacing the natural joint surface on the bone with the joint surface on the joint-facing side of the arthroplasty prosthesis.

[0047] In some embodiments, movably engaging the first adjustable attachment feature with the second adjustable attachment feature may include inserting a rotation plate of the first adjustable attachment feature into a rotation recess of the second adjustable attachment feature to rotatably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0048] In some embodiments, movably engaging the first adjustable attachment feature with the second adjustable attachment feature may include inserting a rotation plate of the second adjustable attachment feature into a rotation recess of the first adjustable attachment feature to rotatably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0049] In some embodiments, movably engaging the first adjustable attachment feature with the second adjustable attachment feature may include engaging a translational connector of the first adjustable attachment feature with a translational member of the second adjustable attachment feature to translationally couple the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

[0050] In some embodiments, movably engaging the first adjustable attachment feature with the second adjustable attachment feature may include engaging a translational connector of the second adjustable attachment feature with a translational member of the first adjustable attachment feature to translationally couple the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

[0051] In some embodiments, movably engaging a first adjustable attachment feature with a second adjustable attachment feature may include: inserting a rotation plate of the second adjustable attachment feature into a rotation recess of the first adjustable attachment feature to rotatably connect the bone anchor component to the bone-facing side of the arthroplasty prosthesis; and engaging a translation connector of the bone anchor component with a translation member of the rotation plate to movably connect the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

[0052] In some embodiments, the method may further include engaging a bone engaging surface of the bone anchoring member with a resected surface of the bone; and transmitting at least one force between the resected surface and the bone engaging surface to movably self-position the bone anchoring member relative to the bone-facing side of the arthroplasty prosthesis.

[0053] In some embodiments, the method may further include activating a locking mechanism to prevent further movement of the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

[0054] In some embodiments, a method for replacing a natural articular surface on a bone of a knee joint may include: mating a prosthesis attachment feature of a knee arthroplasty prosthesis with one of a primary attachment feature of a primary bone anchoring component and a revision attachment feature of a revision bone anchoring component to removably couple one of the primary bone anchoring component and the revision bone anchoring component to a bone-facing side of the knee arthroplasty prosthesis. The method may also include: fixing one of a primary bone engagement surface of the primary bone anchoring component and a revision bone engagement surface of the revision bone anchoring component to a resected surface of the bone; and replacing the natural articular surface on the bone with the articular surface on the joint-facing side of the knee arthroplasty prosthesis. When the primary bone anchoring component is fixed to the bone, at least a majority of the primary bone anchoring component may be located outside the intramedullary canal of the bone. When the revision bone anchoring component is fixed to the bone, a distal portion of the rod of the revision bone anchoring component may be capable of being fixed within the intramedullary canal of the bone.

[0055] In some embodiments, mating a prosthesis attachment feature with one of a primary attachment feature and a revision attachment feature may include inserting a prosthesis plate of the prosthesis attachment feature into one of a primary recess of the primary attachment feature and a revision recess of the revision attachment feature to removably connect one of the primary bone anchoring component and the revision bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis.

[0056] In some embodiments, mating a prosthesis attachment feature with one of a primary attachment feature and a revision attachment feature may include mating a prosthesis recess of the prosthesis attachment feature with one of a primary plate of the primary attachment feature and a revision plate of the revision attachment feature to removably connect one of the primary bone anchoring component and the revision bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis.

[0057] In some embodiments, mating a prosthesis attachment feature with one of a primary attachment feature and a revision attachment feature may include mating a prosthesis translation member of the prosthesis attachment feature with one of a primary translation connector of the primary attachment feature and a revision translation connector of the revision attachment feature to removably couple one of the primary bone anchor component and the revision bone anchor component to a bone-facing side of the knee arthroplasty prosthesis.

[0058] In some embodiments, mating a prosthesis attachment feature with one of a primary attachment feature and a revision attachment feature may include mating a prosthesis translation connector of the prosthesis attachment feature with one of a primary translation member of the primary attachment feature and a revision translation member of the revision attachment feature to removably couple one of the primary bone anchor component and the revision bone anchor component to a bone-facing side of the knee arthroplasty prosthesis.

[0059] In some embodiments, the method may further include engaging one of the primary bone engaging surface and the revision bone engaging surface with a resected surface of the bone; and transmitting at least one force between the resected surface and one of the primary bone engaging surface and the revision bone engaging surface to movably self-position one of the primary bone anchoring component and the revision bone anchoring component relative to the bone-facing side of the knee arthroplasty prosthesis.

[0060] In some embodiments, the method may further include activating a locking mechanism to prevent further movement of one of the primary bone anchor component and the revision bone anchor component relative to the bone-facing side of the knee arthroplasty prosthesis.

[0061] In some embodiments, the knee arthroplasty prosthesis may include one of: a tibial baseplate having a tibial articular surface on a joint-facing side of the tibial baseplate; and a femoral prosthesis having a femoral articular surface on a joint-facing side of the femoral prosthesis. The primary bone anchoring component may include at least one of: a short stem, a keel, a sleeve, an adapter, and a filler block.

[0062] In some embodiments, the revision bone anchor component may further include at least one of: a keel, a sleeve, an adapter, and a filler block.

[0063] In some embodiments, a method for replacing a natural articular surface on a bone of a knee joint may include selecting any of: a primary bone anchoring component having a primary bone engagement surface and a primary attachment feature that can be fixed to a resected surface of a bone; and a revision bone anchoring component having a revision bone engagement surface and a revision attachment feature that can be fixed to a resected surface of a bone. The method may also include: rotatably and / or translationally mating a prosthesis attachment feature of a knee arthroplasty prosthesis with any of the primary attachment feature and the revision attachment feature to connect any of the primary bone anchoring component and the revision bone anchoring component to a bone-facing side of the knee arthroplasty prosthesis. The method may also include: fixing any of the primary bone engagement surface and the revision bone engagement surface to the resected surface of the bone; and replacing the natural articular surface on the bone with the articular surface on the joint-facing side of the knee arthroplasty prosthesis.

[0064] In some embodiments, rotatably and / or translationally mating a prosthetic attachment feature with either a primary attachment feature or a revision attachment feature may include inserting a prosthetic plate of the prosthetic attachment feature into either a primary recess of the primary attachment feature or a revision recess of the revision attachment feature to connect either a primary bone anchor component or a revision bone anchor component to the bone-facing side of the knee arthroplasty prosthesis.

[0065] In some embodiments, rotatably and / or translationally engaging a prosthesis attachment feature with either a primary attachment feature or a revision attachment feature may include engaging a prosthesis recess of the prosthesis attachment feature with either a primary plate of the primary attachment feature or a revision plate of the revision attachment feature to connect either a primary bone anchor component or a revision bone anchor component to a bone-facing side of a knee arthroplasty prosthesis.

[0066] In some embodiments, rotatably and / or translationally engaging a prosthesis attachment feature with either a primary attachment feature or a revision attachment feature may include engaging a prosthesis translation member of the prosthesis attachment feature with either a primary translation connector of the primary attachment feature or a revision translation connector of the revision attachment feature to removably couple either a primary bone anchor component or a revision bone anchor component to a bone-facing side of a knee arthroplasty prosthesis.

[0067] In some embodiments, rotatably and / or translationally engaging a prosthesis attachment feature with either a primary attachment feature or a revision attachment feature may include engaging a prosthesis translation connector of the prosthesis attachment feature with either a primary translation member of the primary attachment feature or a revision translation member of the revision attachment feature to removably couple either a primary bone anchor component or a revision bone anchor component to a bone-facing side of a knee arthroplasty prosthesis.

[0068] In some embodiments, the method may further include engaging either the primary bone engaging surface and the revision bone engaging surface with a resected surface of the bone; and transmitting at least one force between the resected surface and either the primary bone engaging surface and the revision bone engaging surface to movably self-position either the primary bone anchoring component and the revision bone anchoring component relative to the bone-facing side of the knee arthroplasty prosthesis.

[0069] In some embodiments, the method may further include activating a locking mechanism to prevent further movement of either the primary bone anchor component and the revision bone anchor component relative to the bone-facing side of the knee arthroplasty prosthesis.

[0070] In some embodiments, activating the locking mechanism may include rotating the locking fastener in a first direction to prevent further movement of either the primary bone anchor component and the revision bone anchor component relative to the bone-facing side of the knee arthroplasty prosthesis.

[0071] In some embodiments, when the primary bone anchoring component is secured to the bone, at least a majority of the primary bone anchoring component may be located outside the intramedullary canal of the bone, and when the revision bone anchoring component is secured to the bone, a distal portion of the shaft of the revision bone anchoring component may be configured to be secured within the intramedullary canal of the bone.

[0072] In some embodiments, the revision bone anchor component may further include at least one of: a keel, a sleeve, an adapter, and a filler block.

[0073] In some embodiments, the primary bone anchoring component may include at least one of: a short shaft, a keel, a sleeve, an adapter, and a filler block.

[0074] In some embodiments, a knee arthroplasty prosthesis may include a tibial baseplate having a tibial articular surface on a joint-facing side of the tibial baseplate.

[0075] In some embodiments, a knee arthroplasty prosthesis may include a femoral prosthesis having a femoral articular surface on a joint-facing side of the femoral prosthesis.

[0076] In some embodiments, a method for replacing a natural joint surface on a bone may include: removably mating a prosthesis attachment feature of an arthroplasty prosthesis with a component attachment feature of a bone anchoring component to removably couple the bone anchoring component to a bone-facing side of the arthroplasty prosthesis. The method may also include: securing a bone-engaging surface of the bone anchoring component to a resected surface of the bone; and replacing the natural joint surface on the bone with the joint surface on the joint-facing side of the arthroplasty prosthesis. The prosthesis attachment feature may include a circular shape having a diameter of at least 10 mm.

[0077] In some embodiments, the prosthesis attachment feature may include a first circular shape having a first diameter of at least 10 mm, the component attachment feature may include a second circular shape having a second diameter of at least 10 mm, and the prosthesis attachment feature and the component attachment feature may include circular shapes that complement each other.

[0078] In some embodiments, the diameter of the circular shape may be at least 20 mm.

[0079] In some embodiments, the diameter of the circular shape may be at least 30 mm.

[0080] In some embodiments, removably mating the prosthesis attachment feature with the component attachment feature may include inserting a prosthesis plate of the prosthesis attachment feature into a component recess of the component attachment feature to removably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0081] In some embodiments, the method may further include engaging the bone engaging surface with a resected surface of the bone; and transmitting at least one force between the resected surface and the bone engaging surface to movably self-position the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

[0082] In some embodiments, the method may further include activating a locking mechanism to prevent further movement of the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

[0083] In some embodiments, activating the locking mechanism may include rotating the locking fastener in a first direction to prevent further movement of the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

[0084] In some embodiments, the method may further include engaging at least one first anti-rotation feature of the arthroplasty prosthesis with at least one second anti-rotation feature of the bone anchoring component to resist rotation of the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

[0085] In some embodiments, the arthroplasty prosthesis may include one of: a tibial baseplate having a tibial articular surface on a joint-facing side of the tibial baseplate; and a femoral prosthesis having a femoral articular surface on a joint-facing side of the femoral prosthesis. The bone anchoring component may include at least one of: a rod, a keel, a sleeve, an adapter, and a filler block.

[0086] These and other features and advantages of the present disclosure will become more fully apparent from the following description and appended claims, or may be learned by the practice of the arthroplasty devices, systems, and methods set forth hereinafter. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] Exemplary embodiments of the present disclosure will become more fully apparent from the following description in conjunction with the accompanying drawings. Understanding that these drawings depict only exemplary embodiments and are therefore not to be considered limiting of the scope of the present disclosure, exemplary embodiments of the present disclosure will be described with additional specificity and detail through the use of the accompanying drawings, in which:

[0088] Figure 1 illustrates an exploded view of an arthroplasty system according to an embodiment of the present disclosure;

[0089] Figure 2 After assembly Figure 1 Anterior perspective view of an arthroplasty system;

[0090] Figure 3 Graphics Figure 2 A posterior perspective view of the arthroplasty system;

[0091] Figure 4A illustrates a top perspective view of a tibial baseplate according to an embodiment of the present disclosure;

[0092] Figure 4B Graphics Figure 4A A bottom perspective view of the tibial baseplate;

[0093] Figure 4C Graphics Figure 4A A top view of the tibial baseplate;

[0094] Figure 4D Graphics Figure 4A Bottom view of the tibial baseplate;

[0095] Figure 5A illustrates a front view of a keel according to an embodiment of the present disclosure;

[0096] Figure 5B Graphics Figure 5A Side view of the keel;

[0097] Figure 5C Graphics Figure 5A A top view of the keel;

[0098] Figure 5D Graphics Figure 5A Bottom view of the keel;

[0099] Figure 6 illustrates an exploded view of an arthroplasty system according to another embodiment of the present disclosure;

[0100] Figure 7 After assembly Figure 6 Anterior perspective view of an arthroplasty system;

[0101] Figure 8 Graphics Figure 7A posterior perspective view of the arthroplasty system;

[0102] Fig. 9A illustrates a front view of a low profile keel according to another embodiment of the present disclosure;

[0103] Fig. 9B Graphics Fig. 9A Side view of the low-profile keel;

[0104] Fig. 9C Graphics Fig. 9A A top view of the low-profile keel;

[0105] Fig.9D Graphics Fig. 9A Bottom view of the low profile keel;

[0106] Fig.10 illustrates an exploded view of an arthroplasty system according to another embodiment of the present disclosure;

[0107] Fig.11 After assembly Fig.10 A perspective view of the arthroplasty system;

[0108] Fig.12 Graphics Fig.11 A perspective view of the arthroplasty system;

[0109] Fig.13 Graphics Fig.12 A cross-sectional view of an arthroplasty system;

[0110] Fig.14A A bottom perspective view illustrating component attachment features according to an embodiment of the present disclosure;

[0111] Fig. 14B Graphics Fig.14A a side view of a component attachment feature of the embodiment;

[0112] Fig. 14C Graphics Fig.14A a top view of a component attachment feature;

[0113] Fig.14D Graphics Fig.14A a bottom view of a component attachment feature;

[0114] Fig.15A illustrates a perspective view of a rod adapter according to an embodiment of the present disclosure;

[0115] Fig. 15B Graphics Fig.15A Another perspective view of the rod adapter;

[0116] Fig. 15C Graphics Fig.15A A top view of a rod adapter;

[0117] Fig.15D Graphics Fig.15A A side view of a rod adapter;

[0118] Fig.16 illustrates an exploded view of an arthroplasty system according to another embodiment of the present disclosure;

[0119] Fig.17 After assembly Fig.16 A bottom perspective view of an arthroplasty system;

[0120] Fig.18 Graphics Fig.17 Anterior view of the arthroplasty system;

[0121] Fig.19 Graphics Fig.17 Bottom view of the arthroplasty system;

[0122] Fig. 20 illustrates an exploded view of an arthroplasty system according to another embodiment of the present disclosure;

[0123] Fig.21 After assembly Fig. 20 A perspective view of the arthroplasty system;

[0124] Fig.22A illustrates a perspective view of a tapered sleeve according to an embodiment of the present disclosure;

[0125] Fig. 22B Graphics Fig.22A A side view of a tapered sleeve;

[0126] Fig. 22C Graphics Fig.22A A top view of a tapered sleeve;

[0127] Fig.22D Graphics Fig.22A A bottom view of a tapered sleeve;

[0128] Fig.23 illustrates an exploded view of an arthroplasty system according to another embodiment of the present disclosure;

[0129] Fig.24 After assembly Fig.23 A perspective view of the arthroplasty system;

[0130] Fig.25A illustrates a perspective view of an oval sleeve according to another embodiment of the present disclosure;

[0131] Fig.25B Graphics Fig.25A A perspective view of an oval sleeve;

[0132] Fig.25C Graphics Fig.25A A top view of an elliptical sleeve;

[0133] Fig.25D Graphics Fig.25A A bottom view of the oval sleeve;

[0134] Fig.26A A perspective view illustrating a reamer according to an embodiment of the present disclosure;

[0135] Fig.26B Graphics Fig.26A Another perspective view of the reamer;

[0136] Fig.26C Graphics Fig.26A A side view of the reamer;

[0137] Fig.26D Graphics Fig.26A Bottom view of the reamer;

[0138] Fig. 27 illustrates an exploded view of an arthroplasty system according to another embodiment of the present disclosure;

[0139] Fig.28 After assembly Fig. 27 A perspective view of the arthroplasty system;

[0140] Fig.29A FIG. 2 illustrates a lateral side view of a femoral prosthesis according to an embodiment of the present disclosure;

[0141] Fig.29B Graphics Fig.29A Posterior view of the femoral prosthesis;

[0142] Fig.29C Graphics Fig.29A Medial view of the femoral prosthesis;

[0143] Fig.29D Graphics Fig.29A Anterior view of the femoral prosthesis;

[0144] Fig.29E Graphics Fig.29A Top view of the femoral prosthesis;

[0145] Fig.29F Graphics Fig.29A Bottom view of the femoral prosthesis;

[0146] Fig.30 illustrates an exploded view of an arthroplasty system according to another embodiment of the present disclosure; and

[0147] Fig.31 After assembly Fig.30 Perspective view of the arthroplasty system.

[0148] It should be understood that the drawings are for the purpose of illustrating the concepts of the present disclosure and may not be drawn to scale. In addition, the drawings illustrate exemplary embodiments and do not represent limitations on the scope of the present disclosure. DETAILED DESCRIPTION

[0149] The exemplary embodiments of the present disclosure will be best understood by reference to the accompanying drawings, wherein like parts are represented by like reference numerals throughout. It will be readily understood that the components of the present disclosure may be arranged and designed in a variety of different configurations, as generally described and illustrated in the accompanying drawings. Therefore, the following more detailed description of the embodiments of the devices, systems, and methods as represented in the accompanying drawings is not intended to limit the scope of the present disclosure, but merely represents exemplary embodiments of the present disclosure.

[0150] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are presented in the drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0151] Standard medical planes of reference and descriptive terminology are employed throughout this specification. Although these terms are generally used to refer to the human body, certain terms apply generally to physical objects.

[0152] A standard system of three mutually perpendicular reference planes is used. The sagittal plane divides the body into right and left parts. The coronal plane divides the body into anterior and posterior parts. The transverse plane divides the body into superior and inferior parts. The mid-sagittal plane, mid-coronal plane, or mid-transverse plane divides the body into equal parts, which equal parts can be bilaterally symmetrical. The intersection of the sagittal plane and the coronal plane defines the superior-inferior axis or the cephalad-caudal axis. The intersection of the sagittal plane and the transverse plane defines the anterior-posterior axis. The intersection of the coronal plane and the transverse plane defines the medial-lateral axis. The superior-inferior axis or the cephalad-caudal axis, the anterior-posterior axis, and the medial-lateral axis are perpendicular to each other.

[0153] Anterior means toward the front of the body. Posterior means toward the back of the body. Superior or cranial means toward the head. Inferior or caudal means toward the foot or tail. Medial means toward the midline of the body, particularly toward the bilateral plane of symmetry of the body. Lateral means away from the midline of the body or away from the bilateral plane of symmetry of the body. Axial means toward the central axis of the body. Distal means away from the central axis of the body. Ipsilateral means on the same side of the body. Contralateral means on the opposite side of the body. Proximal means toward the trunk of the body. Proximal may also mean toward the user or operator. Distal means away from the trunk. Distal may also mean away from the user or operator. Dorsal means toward the top of the foot. Plantar means toward the sole of the foot. Varus means an inward deviation of the distal portion of the leg below the knee joint, resulting in a bow-legged appearance. Valgus means an outward deviation of the distal portion of the leg below the knee joint, resulting in a splayed appearance.

[0154] As defined herein, the terms "arthroplasty prosthesis" and "arthroplasty system" (and the like) encompass any prosthesis or prosthetic system that includes a bone-facing side that can be implanted within, adjacent to, or near a bone of a patient or animal. Thus, the terms "arthroplasty prosthesis" and "arthroplasty system" may also include a prosthesis or prosthetic system that may or may not be used to repair a diseased joint of a patient or animal.

[0155] As defined herein, the term "bone anchoring component" (and the like) encompasses any prosthesis that includes at least one bone-engaging surface (or at least one bone cement-engaging surface, or at least one bone-filling material-engaging surface, etc.), or is coupled to or supports (directly or indirectly) another component of a prosthesis that includes at least one bone-engaging surface (or at least one bone cement-engaging surface, or at least one bone-filling material-engaging surface, etc.) that can be implanted in, adjacent to, or near a bone of a patient or animal. Thus, the term "bone anchoring component" may include any rod (e.g., short rod, long rod, intermediate rod, etc.), intramedullary rod, keel, sleeve, adapter, filler block, etc. having any size, shape, feature, morphology, etc. described or contemplated herein, as well as any rod (short rod, long rod, etc.), intramedullary rod, keel, sleeve, adapter, filler block, etc. having any size, shape, feature, morphology, etc. not described or contemplated herein.

[0156] Although the arthroplasty prostheses and systems described herein are disclosed in the context of knee arthroplasty prostheses and systems, those skilled in the art will readily appreciate that the inventive concepts described and contemplated herein may be applied to any prosthesis or prosthetic system for any bone or joint of a patient or animal, including but not limited to bones / joints of the foot, ankle, knee, hip, hand, wrist, elbow, shoulder, sacrum, spine, neck, etc., without departing from the spirit or scope of the present disclosure.

[0157] It will also be understood that any component or feature of any arthroplasty system described or contemplated herein may be combined with any other component or feature described or contemplated herein to produce any number of different arthroplasty system embodiments.

[0158] It will also be understood that any component or feature of any arthroplasty system described or contemplated herein may be combined with any other component or feature described or contemplated herein to produce any number of different surgical kits. Each of these surgical kits may also include (or not include) any number of supporting surgical instruments or common parts (e.g., bone screws, fasteners, Kirschner wires, etc.).

[0159] In addition, it will be understood that any method step (or component / feature of any method step) described or contemplated herein can be combined with any other method step (or component / feature of any method step) described or contemplated herein in any order and / or in any combination to produce any number of different method embodiments for implanting any number of different arthroplasty system embodiments described or contemplated herein.

[0160] Figures 1 to 5D Various views of an arthroplasty system according to an embodiment of the present disclosure are illustrated. Specifically, Figure 1 is an exploded view of the arthroplasty system; Figure 2 is a front perspective view of the arthroplasty system after assembly; Figure 3 is a posterior perspective view of the arthroplasty system; Figure 4A is a top perspective view of a tibial baseplate of an arthroplasty system; Figure 4B is a bottom perspective view of the tibial baseplate; Figure 4C is a top view of the tibial baseplate; Figure 4D is a bottom view of the tibial baseplate; Figure 5A is an anterior view of the keel of the arthroplasty system; Figure 5B It is a side view of the keel; Figure 5C is a top view of the keel; and Figure 5D This is a bottom view of the keel.

[0161] In some embodiments, Figures 1 to 5D The arthroplasty system of can generally include a tibial baseplate 100 , a keel 200 , and a locking fastener 50 .

[0162] In some embodiments, the locking fastener 50 may include a locking fastener torque connection interface 59 and locking fastener threads 58 .

[0163] In some embodiments, tibial baseplate 100 can be a universal tibial baseplate that can be compatible with some or all of the other bone anchoring components described or contemplated herein.

[0164] Tibial baseplate 100 may also be referred to herein as an arthroplasty prosthesis or a knee arthroplasty prosthesis. Tibial baseplate 100 may generally include a joint-facing side 1, a bone-facing side 2, a peripheral ridge 110, an inner recess 112, an alcove 114, and at least one first anti-rotation feature 61 (or a first anti-rotation hole / first filler hole).

[0165] In some embodiments, joint-facing side 1 of tibial baseplate 100 may include a tibial articular surface, such as a tibial articular surface of a tibial insert (not shown), which may be coupleable with interior recess 112 of tibial baseplate 100 and held in place by protrusion 114 and / or peripheral ridge 110 of tibial baseplate 100. However, in other embodiments, joint-facing side 1 of tibial baseplate 100 may be directly coupled to a tibial articular surface (not shown), which may be integrally formed with tibial baseplate 100.

[0166] In some embodiments, bone-facing side 2 of tibial baseplate 100 may include bone-engaging surface 4 (e.g., see Fig. 20 and Fig.21 ). Bone-engaging surface 4 may also be referred to herein as a primary bone-engaging surface or a revision bone-engaging surface. In some embodiments, bone-engaging surface 4 of tibial baseplate 100 may include a porous surface coating 5 (see Fig. 20 and Fig.21 ). In some embodiments, the porous surface coating 5 can be an additive surface coating (e.g., a porous titanium surface or other porous metal surface), a nanocoating, or other treatment that can be configured to promote bone ingrowth for non-bone cement (or bone cement) applications.

[0167] In some embodiments, bone-facing side 2 of tibial baseplate 100 may not include a bone-engaging surface.

[0168] In some embodiments, bone-facing side 2 of tibial baseplate 100 may be intended for use with bone cement, bone filling materials, or the like.

[0169] In some embodiments, the bone-facing side 2 of the tibial baseplate 100 may include at least one post 190 (see, e.g., Fig. 20 and Fig.21 ), the at least one post 190 can extend downwardly away from the bone-facing side 2 of the tibial baseplate 100.

[0170] like Figure 1 As shown in FIG. 1 , in some embodiments, tibial baseplate 100 can include a prosthesis attachment feature 10 , or a first adjustable attachment feature, on a bone-facing side 2 of tibial baseplate 100 .

[0171] In some embodiments, the prosthesis attachment feature 10 can be formed in / on the bone-facing side 2 of the tibial baseplate 100. The prosthesis attachment feature 10 can include a rotational recess 15 having a recess surface 11, a recess sidewall 12, a recess fastener hole 13, and a recess diameter 14. The rotational recess 15 may also be referred to herein as a prosthesis recess, a component recess, a primary recess, or a revision recess. However, in some embodiments, the prosthesis attachment feature 10 of the tibial baseplate 100 can include a rotational plate, as will be discussed in more detail below.

[0172] continue Figures 1 to 5D The keel 200 may also be referred to herein as a bone anchoring member, a primary bone anchoring member, or a revision bone anchoring member.

[0173] In some embodiments, the keel 200 may generally include a first keel web 201 , a second keel web 202 , a central keel post 203 , a keel bore 244 , keel bore threads 205 , and one or more keel ribs 210 or serrations formed in the bone engaging surface 4 of the keel 200 .

[0174] In some embodiments, the keel 200 may further include at least one second anti-rotation feature 62 and a component attachment feature 20 that may be coupled to or formed in / on the proximal end of the keel 200 .

[0175] In some embodiments, at least one second anti-rotation feature 62 may be tapered and received within at least one first anti-rotation feature 61 formed in tibial baseplate 100 to form a tapered connection that prevents relative rotation of keel 200 and tibial baseplate 100, as will be discussed in more detail below.

[0176] The component attachment feature 20 may also be referred to herein as a secondary adjustable attachment feature, a primary attachment feature, or a revision attachment feature.

[0177] In some embodiments, the component attachment feature 20 may include a rotational plate 25 having a plate diameter 24 , a prosthesis-facing surface 21 , a component-facing surface 22 , and a plate sidewall 23 .

[0178] However, in other embodiments, the structures of the component attachment feature 20 and the prosthetic attachment feature 10 may be reversed such that the component attachment feature 20 may include the rotational recess 15 and the prosthetic attachment feature 10 may include the rotational plate 25. Thus, in some embodiments, the prosthetic attachment feature 10 and the component attachment feature 20 may include circular shapes that complement each other.

[0179] The rotated plate 25 may also be referred to herein as a prosthetic plate, a component plate, a primary plate, or a revision plate.

[0180] In some embodiments, the prosthetic attachment feature 10 may include a circular shape having a diameter of at least 10 mm.

[0181] In some embodiments, the prosthetic attachment feature 10 may include a circular shape having a diameter of at least 20 mm.

[0182] In some embodiments, the prosthetic attachment feature 10 may include a circular shape having a diameter of at least 30 mm.

[0183] In some embodiments, the prosthetic attachment feature 10 may include a circular shape having a diameter of at least 40 mm.

[0184] In some embodiments, the prosthetic attachment feature 10 may include a circular shape having a diameter of at least 50 mm.

[0185] However, in some embodiments, the prosthetic attachment feature 10 may also include a circular shape having a diameter less than 10 mm.

[0186] As in Figures 1 to 5D As can be seen in FIG. 1 , in some embodiments, the component attachment feature 20 can be configured to removably mate with the prosthesis attachment feature 10 to removably couple the bone anchoring component to the bone-facing side 2 of the arthroplasty prosthesis.

[0187] In some embodiments, first adjustable attachment feature or prosthesis attachment feature 10 may include rotational recess 15 formed in bone-facing side 2 of an arthroplasty prosthesis, and second adjustable attachment feature or component attachment feature 20 may include rotational plate 25 coupled to the bone anchoring component and configured to removably mate with rotational recess 15. In these embodiments, keel 200 may not move / rotate relative to tibial baseplate 100, given that at least one second anti-rotation feature 62 of keel 200 may be configured to mate with at least one first anti-rotation feature 61 of tibial baseplate 100 to prevent relative rotation therebetween after assembly with locking fastener 50 coupling tibial baseplate 100 to keel 200.

[0188] In some embodiments, Figures 1 to 5D The arthroplasty system of may be used for primary knee arthroplasty procedures that do not require a rod or intramedullary rod to achieve additional stability. However, it will also be understood that Figures 6 to 9D The Arthroplasty System can also be used for revision knee arthroplasty procedures.

[0189] In some embodiments, the first adjustable attachment feature or prosthesis attachment feature 10 may be configured to movably cooperate with the second adjustable attachment feature or component attachment feature 20 to movably connect a bone anchoring component such as a keel 200 to a bone-facing side 2 of an arthroplasty prosthesis such as a tibial baseplate 100.

[0190] In some embodiments, the first adjustable attachment feature may include a rotational recess 15 formed in the bone-facing side 2 of the arthroplasty prosthesis, and the second adjustable attachment feature may include a rotational plate 25 coupled to the bone anchoring component and configured to cooperate with the rotational recess 15 to rotatably couple the bone anchoring component to the bone-facing side 2 of the arthroplasty prosthesis. For example, at least one of the first and / or second anti-rotation features may be omitted to allow for rotatable coupling between keel 200 and tibial baseplate 100.

[0191] In some embodiments, the first adjustable attachment feature may include a rotation plate 25 connected to the bone-facing side 2 of the arthroplasty prosthesis, and the second adjustable attachment feature may include a rotation recess 15 formed in the bone anchoring component and configured to receive the rotation plate 25 therein to rotatably connect the bone anchoring component to the bone-facing side 2 of the arthroplasty prosthesis.

[0192] Figures 6 to 9D Various views of an arthroplasty system or knee arthroplasty system according to another embodiment of the present disclosure are illustrated. Specifically, Figure 6 is an exploded view of the arthroplasty system; Figure 7 is a front perspective view of the arthroplasty system after assembly; Figure 8 is a posterior perspective view of the arthroplasty system; Fig. 9A is an anterior view of the low-profile keel of the arthroplasty system; Fig. 9B It is a side view of the low profile keel; Fig. 9C is a top view of the low profile keel; and Fig.9D It is a bottom view of the low profile keel.

[0193] In some embodiments, Figures 6 to 9D The arthroplasty system of may generally include a locking fastener 50 , a tibial baseplate 100 , and a low-profile keel 250 .

[0194] In some embodiments, locking fastener 50 and tibial baseplate 100 may include the same / similar features as the other locking fasteners and tibial baseplates discussed herein.

[0195] In some embodiments, low-profile keel 250 may include similar features as keel 200 , but may have a shorter height.

[0196] In some embodiments, the low-profile keel 250 may generally include a bone engaging surface 4, a first low-profile keel wing 251, a second low-profile keel wing 252, a low-profile center keel column 253, a low-profile keel inner hole 294, keel inner hole threads 255, at least one second anti-rotation feature 62, a component attachment feature 20, and one or more low-profile keel ribs 260 or serrations formed in the bone engaging surface 4.

[0197] In some embodiments, Figures 6 to 9D The arthroplasty system of may be used for primary knee arthroplasty procedures that do not require a rod or intramedullary rod to achieve additional stability. However, it will also be understood that Figures 6 to 9D The Arthroplasty System can also be used for revision knee arthroplasty procedures.

[0198] In some embodiments, Figures 6 to 9D The knee arthroplasty system of the present invention can be implanted into the knee joint from a lateral approach using a minimally invasive surgical procedure. The lower overall height of the low-profile keel 250 can help facilitate surgical procedures using a lateral approach. In some embodiments, the low-profile keel 250 can be first implanted into the prepared tibia from a lateral approach, and then the tibial baseplate 100 can be inserted into the surgical site from the lateral approach and connected to the installed low-profile keel 250. However, it will be understood that any arthroplasty system described or contemplated herein can be implanted into any joint or bone from an anterior direction, a posterior direction, a lateral direction, a medial direction, an inferior direction, an superior direction, etc. and / or any combination of directions thereof (e.g., a posterolateral direction, an anteromedial direction, etc.).

[0199] Figures 10 to 15D Various views of an arthroplasty system or knee arthroplasty system according to another embodiment of the present disclosure are illustrated. Specifically, Fig.10 is an exploded view of the arthroplasty system; Fig.11 is a perspective view of the arthroplasty system after assembly; Fig.12 is another perspective of the arthroplasty system; Fig.13 yes Fig.12 A cross-sectional view of an arthroplasty system; Fig.14A is a bottom perspective view of component attachment features of an arthroplasty system; Fig. 14B is a side view of the component attachment feature; Fig. 14C is a top view of the component attachment features; Fig.14D is a bottom view of the component attachment features; Fig.15A is a perspective view of a rod adapter of an arthroplasty system; Fig. 15B is another perspective view of the rod adapter; Fig. 15C is a top view of the rod adapter; and Fig.15D is a side view of the rod adapter.

[0200] In some embodiments, Figures 10 to 15D The arthroplasty system of may generally include a locking fastener 50 , a tibial baseplate 100 , a component attachment feature 20 (which, in some embodiments, may be formed into one or more separate pieces), a rod adapter 300 or bone anchoring component / adapter, and a rod 400 .

[0201] In some embodiments, locking fastener 50 and tibial baseplate 100 may include the same / similar features as the other locking fasteners and tibial baseplates discussed herein.

[0202] In some embodiments, the rod 400 may generally include a proximal portion 401 including rod threads 408, a distal portion 402, and a bone engaging surface 406, which may or may not include one or more splines 410 or ribs and may or may not have a porous surface coating.

[0203] In some embodiments, Figures 10 to 15D The arthroplasty system may be used for revision knee arthroplasty procedures, which may require the rod 400 or an intramedullary rod for additional stability. However, it will also be understood that Figures 10 to 15D The Arthroplasty System can also be used for primary knee arthroplasty procedures.

[0204] In some embodiments, the component attachment feature 20 may include a rotation plate 25, a translation member 30 that may be coupled to the component-facing surface 22 of the rotation plate 25, and one or more bone anchoring components (e.g., in Figures 10 to 15D 3. The translating connector 40 in the rod adapter 300 in the embodiment shown in FIG.

[0205] The translating member 30 may also be referred to herein as a prosthetic translating member, a primary translating member, or a revision translating member.

[0206] The translation coupler 40 may also be referred to herein as a prosthetic translation coupler, a primary translation coupler, or a revision translation coupler.

[0207] In some embodiments, the translating member 30 may include a translating member body 35 that may extend away from the component facing surface 22 of the rotating plate 25 and a fastener hole 37 that may be formed therethrough.

[0208] In some embodiments, the translating member body 35 may include an elongated shape that may or may not span the entire diameter of the rotating plate 25 .

[0209] In some embodiments, the translating member body 35 may include an elongated shape that may span a length greater than the plate diameter 24 of the rotating plate 25 (see, e.g., Fig. 27 and Fig.28, wherein the translating member 30 includes a protruding portion 36 that spans further than the plate diameter 24 of the rotating plate 25 on at least one side of the rotating plate 25).

[0210] continue Figures 10 to 15D The translation member 30 may further include a first translation member arm 31 extending from a distal portion of the translation member body 35 along a first direction, which may extend beside and / or substantially parallel to the rotation plate 25. The translation member 30 may further include a second translation member arm 32 extending from a distal portion of the translation member body 35 along a second direction opposite to the first direction, which may extend beside and / or substantially parallel to the rotation plate 25.

[0211] In other embodiments, the translating member 30 may include an elongated coupling slot (not shown) that may be formed in the rotation plate 25, rather than the translating member body 35 extending from the rotation plate 25. In these embodiments, the elongated coupling slot may be configured to translatably couple with a bone anchoring component to translatably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0212] In some embodiments, the rod 400 may include a translation coupler 40 formed in a proximal end (not shown) of the rod 400 .

[0213] In some embodiments, the stem adapter 300 may include a translation coupler 40 formed in a proximal end of the stem adapter 300 , a bone engaging surface 4 that may or may not include a porous surface coating, a stem adapter inner bore 344 , and stem adapter threads 308 .

[0214] The translating coupling 40 configuration may be formed in the rod adapter 300 and / or in other components of the present disclosure, as will be described below with reference to FIG. 22A to FIG. 22D and FIG. 25A to FIG. 25D discussed in more detail.

[0215] continue FIG. 15A to FIG. 15D The translation coupler 40 formed in the rod adapter 300 may generally include a first translation coupler arm 41 , a second translation coupler arm 42 , a translation coupler arm slot 43 , a translation coupler body slot 45 , and a translation coupler locking surface 46 .

[0216] The translating coupler arm slot 43 can be configured to receive the first translating member arm 31 and the second translating member arm 32 of the translating member 30 therein, and the translating coupler body slot 45 can be configured to receive the proximal / thinner portion of the translating member body 35 therein. In this manner, the rod adapter 300 can be configured to slidably couple and / or translatably cooperate with the translating member 30, such as Fig.11 As shown in .

[0217] In some embodiments, the rotation plate 25 may include a translation member 30 coupled to the rotation plate 25, and the bone anchoring component (e.g., in this embodiment, the rod adapter 300 and / or the rod 400) may include a translation coupler 40 configured to be movably coupled to the translation member 30 so that the bone anchoring component can translate along the translation member 30 in a first direction relative to the rotation plate 25 and translate along the translation member 30 in a second direction opposite to the first direction relative to the rotation plate 25. In these embodiments, the first adjustable attachment feature or prosthesis attachment feature 10 may also include a rotation recess 15 formed in the bone-facing side of the arthroplasty prosthesis, and the second adjustable attachment feature or component attachment feature 20 may include a rotation plate 25 that may be coupled to the bone anchoring component (e.g., the rod adapter 300 and / or the rod 400, via the translation member 30) and configured to cooperate with the rotation recess 15 to also rotatably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0218] In this manner, a bone anchoring component (e.g., stem adapter 300 and / or stem 400) can be rotationally and / or translationally engaged with the bone-facing side 2 of tibial baseplate 100. This arrangement allows for positional adjustment of stem adapter 300 and / or stem 400 relative to the bone-facing side 2 of tibial baseplate 100 along an infinite number of different rotational and / or translational positions (e.g., rotational positions along 360 degrees or rotational and / or translational positions along the length of translating member 30) in order to achieve a precise desired position of the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

[0219] Once the desired position of the bone anchoring member relative to the bone-facing side of the arthroplasty prosthesis has been achieved, the desired position can be locked in place by tightening the locking fastener 50, such as Fig.12 and Fig.13 . For example, when locking fastener 50 is tightened, the distal end of locking fastener 50 may press against translating coupler locking surface 46 and push the first and second translating coupler arms of translating coupler 40 downward against the first and second translating member arms of translating member 30. This will frictionally lock stem adapter 300 against translating member 30 and prevent stem adapter 300 from translating along translating member 30. In addition, tightening locking fastener 50 will also tighten rotation plate 25 against rotation recess 15 formed in tibial baseplate 100 to prevent stem adapter 300 (and / or stem 400) from rotating relative to the bone-facing side 2 of tibial baseplate 100.

[0220] In some embodiments, locking fastener 50 can be loosened to allow rod 400 to be rotationally and / or translationally movable relative to bone-facing side 2 of tibial baseplate 100. In this state, rod 400 can then be inserted into a prepared bone tunnel or resected bone to engage bone-engaging surface 4 of rod 400 with a resected surface of the bone (e.g., a surface of a bone tunnel formed in the bone to receive rod 400, which may have a diameter slightly smaller than the diameter of rod 400 to ensure a good press fit). Further pushing rod 400 into the bone tunnel can result in at least one force being transmitted between the resected surface of the bone and bone-engaging surface 4 of rod 400, which can cause rod 400 to movably self-align or self-position relative to bone-facing side 2 of tibial baseplate 100 as the rod is pushed into the bone tunnel. An operator can also grasp tibial baseplate 100 and manually move it relative to rod 400 within the bone tunnel to further adjust the position of tibial baseplate 100 relative to bone-facing side 2 of tibial baseplate 100 (if necessary). Once the desired position of the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis has been achieved, the desired position can be locked in place by tightening the locking fastener 50, as previously discussed. In this manner, the self-adjusting and / or adjustable arthroplasty system of the present disclosure can eliminate the need for a trial fitting instrument and / or eliminate the need to perform one or more trial fitting procedures in order to select a prosthesis having a "tightest fit" or "closest discrete shape" from a plurality of different prostheses in a kit having many different discrete sizes and shapes (e.g., each discrete prosthesis can include a different discrete rotational position, shape, or form and / or a different discrete offset position, shape, or form).

[0221] In other embodiments, the structure of the second adjustable attachment feature or component attachment feature 20 and the first adjustable attachment feature or prosthesis attachment feature 10 may be reversed such that the first adjustable attachment feature includes a translation coupler 40 on the bone-facing side of the arthroplasty prosthesis and the second adjustable attachment feature includes a translation member 30 that is configured to be movably coupled to the translation coupler 40 and enables the bone anchoring component to translate along the translation coupler 40 in a first direction relative to the bone-facing side of the arthroplasty prosthesis and to translate along the translation coupler in a second direction opposite to the first direction relative to the bone-facing side of the arthroplasty prosthesis.

[0222] In some embodiments, a knee arthroplasty system for replacing a natural articular surface on a bone of a knee joint may include a knee arthroplasty prosthesis, a primary bone anchoring component, and a revision bone anchoring component. The knee arthroplasty prosthesis may include a joint-facing side having an articular surface and a bone-facing side having a prosthesis attachment feature. The primary bone anchoring component may include a primary bone-engaging surface and a primary attachment feature that can be fixed to a resected surface of the bone. When the primary bone anchoring component is anchored to the bone, at least a majority of the primary bone anchoring component may be located outside the intramedullary canal of the bone. The revision bone anchoring component may include a revision attachment feature and a rod having a distal portion that may be capable of being fixed within the intramedullary canal of the bone when the revision bone anchoring component is anchored to the bone. The prosthesis attachment feature may be configured to removably couple the primary bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis by cooperating with the primary attachment feature. The prosthesis attachment feature may be configured to removably couple the revision bone anchor component to the bone-facing side of the knee arthroplasty prosthesis by mating with the revision attachment feature.

[0223] In some embodiments, a knee arthroplasty system for replacing a natural articular surface on a bone of a knee joint may include a knee arthroplasty prosthesis, a primary bone anchoring component, and a revision bone anchoring component. The primary bone anchoring component may include a joint-facing side having an articular surface and a bone-facing side having a prosthesis attachment feature formed thereon. The primary bone anchoring component may include a primary bone-engaging surface that can be fixed to a resected primary surface of the bone and a primary attachment feature. The revision bone anchoring component may include a revision bone-engaging surface that can be fixed to a resected revision surface of the bone and a revision attachment feature. The prosthesis attachment feature may be configured to cooperate with any one of the primary attachment feature and the revision attachment feature to couple any one of the primary bone anchoring component and the revision bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis. The prosthesis attachment feature may be configured to cooperate with at least one of the primary attachment feature and the revision attachment feature rotatably and / or translatably.

[0224] Figures 16 to 19 Various views of an arthroplasty system or knee arthroplasty system according to another embodiment of the present disclosure are illustrated. Specifically, Fig.16 is an exploded view of the arthroplasty system; Fig.17 is a bottom perspective view of the arthroplasty system after assembly; Fig.18 is a front view of the arthroplasty system; and Fig.19 is a bottom view of the arthroplasty system.

[0225] In some embodiments, Figures 16 to 19The arthroplasty system may generally include a locking fastener 50, a tibial baseplate 100, at least a portion of a component attachment feature 20, a first filler block 510 having a first filler block flange 531, a second filler block 520 having a second filler block flange 532, a first filler block fastener 511, and a second filler block fastener 522.

[0226] In some embodiments, locking fastener 50, tibial baseplate 100, and component attachment features 20 may include the same / similar features as the other locking fasteners, tibial baseplates, and component attachment features discussed herein.

[0227] In some embodiments, Figures 16 to 19 The arthroplasty system of may also include other components discussed herein, such as the rod 400, the rod adapter 300, etc.

[0228] In some embodiments, the bone-facing side 2 of the first filler block 510 and / or the second filler block 520 may include a bone-engaging surface 4 that includes a porous surface coating 5. In some embodiments, the porous surface coating 5 may be an additive surface coating (e.g., a porous titanium surface or other porous metal surface), a nanocoating, or other treatments that may be configured to promote bone ingrowth for non-bone cement (or bone cement) applications.

[0229] In some embodiments, the height of the first and / or second filler blocks may be selected for a given resected tibial plateau morphology.

[0230] exist Figures 16 to 19 In the example shown in FIG, the height of the first filler block 510 may be approximately 10 mm, and the height of the second filler block 520 may be approximately 5 mm. However, it will be understood that fillers of any size / height may be used with the arthroplasty systems and components of the present disclosure.

[0231] like Fig.19 As shown in FIG. 1 , in some embodiments, first filler block flange 531 and / or second filler block flange 532 may slightly overhang rotation plate 25 and help lock / hold rotation plate 25 to tibial baseplate 100 .

[0232] Figures 20 to 22D Various views of an arthroplasty system or knee arthroplasty system according to another embodiment of the present disclosure are illustrated. Specifically, Fig. 20 is an exploded view of the arthroplasty system; Fig.21 is a perspective view of the arthroplasty system; Fig.22A is a perspective view of a tapered sleeve of an arthroplasty system; Fig. 22B is a side view of the tapered sleeve; Fig. 22C is a top view of the tapered sleeve; and Fig.22DIt is a bottom view of the tapered sleeve.

[0233] In some embodiments, Figures 20 to 22D The arthroplasty system of can generally include a locking fastener 50, a tibial baseplate 100, a component attachment feature 20, a stem 400, and a tapered sleeve 600 or a stem / tapered filler block.

[0234] In some embodiments, locking fastener 50, tibial baseplate 100, component attachment features 20, and stem 400 may include the same / similar features as the other locking fasteners, tibial baseplates, component attachment features, and stems discussed herein.

[0235] In some embodiments, the tapered sleeve 600 may include a translation connector 40 formed in the proximal end of the tapered sleeve 600, a bone engaging surface 4 that may or may not include a porous surface coating 5, a tapered sleeve inner bore 644, and tapered sleeve threads 608.

[0236] In some embodiments, the porous surface coating 5 may be an additive surface coating (eg, a porous titanium surface or other porous metal surface), a nanocoating, or other treatment that may be configured to promote bone ingrowth for cementless (or cemented) applications.

[0237] The translating coupler 40 formed in the proximal end of the tapered sleeve 600 can perform the same function as the translating coupler 40 formed in the proximal end of the stem adapter 300, as previously discussed. In this manner, the tapered sleeve 600 (and / or the stem 400 coupled thereto) can be rotatably and / or translationally movable relative to the bone-facing side 2 of the tibial baseplate 100, similar to the previously described translating coupler 40 formed in the proximal end of the stem adapter 300. Figures 10 to 15D as described.

[0238] In some embodiments, Figures 20 to 22D The arthroplasty system of may be used for revision knee arthroplasty procedures, which may require the rod 400 (or intramedullary rod) and the tapered sleeve 600 for additional stability. However, it will also be understood that Figures 20 to 22D The Arthroplasty System can also be used for primary knee arthroplasty procedures.

[0239] Figures 23 to 26D Various views of an arthroplasty system or knee arthroplasty system according to another embodiment of the present disclosure are illustrated. Specifically, Fig.23 An exploded view of the arthroplasty system is shown; Fig.24 is a perspective view of the arthroplasty system after assembly; Fig.25A is a perspective view of an oval sleeve of an arthroplasty system; Fig.25B is a side view of the oval sleeve; Fig.25C is a top view of the oval sleeve; Fig.25DIt is a bottom view of the oval sleeve; Fig.26A is a perspective view of an example reamer of an arthroplasty system; Fig.26B Here is another perspective view of the reamer; Fig.26C is a side view of the reamer; and Fig.26D It is a bottom view of the reamer.

[0240] In some embodiments, Figures 23 to 26D The arthroplasty system of may generally include a locking fastener 50 , a tibial baseplate 100 , a component attachment feature 20 , a stem 400 , and an oval sleeve 700 .

[0241] In some embodiments, locking fastener 50, tibial baseplate 100, component attachment features 20, and stem 400 may include the same / similar features as the other locking fasteners, tibial baseplates, component attachment features, and stems discussed herein.

[0242] In some embodiments, the elliptical sleeve 700 may include a translation connector 40 formed in the proximal end of the elliptical sleeve 700, a bone engaging surface 4 that may or may not include a porous surface coating 5, an elliptical sleeve inner bore 744 and an elliptical sleeve thread 708.

[0243] In some embodiments, the porous surface coating 5 may be an additive surface coating (eg, a porous titanium surface or other porous metal surface), a nanocoating, or other treatment that may be configured to promote bone ingrowth for cementless (or cemented) applications.

[0244] The translating coupler 40 formed in the proximal end of the oval sleeve 700 can perform the same function as the translating coupler 40 formed in the proximal end of the stem adapter 300, as previously discussed. In this manner, the oval sleeve 700 (and / or the stem 400 coupled thereto) can be rotatably and / or translationally movable relative to the bone-facing side 2 of the tibial baseplate 100, similar to the previously described embodiments of the present invention. Figures 10 to 15D as described.

[0245] In some embodiments, Figures 23 to 26D The arthroplasty system of can be used for revision knee arthroplasty procedures, which may require the rod 400 (or intramedullary rod) and the oval sleeve 700 for additional stability. However, it will also be understood that Figures 23 to 26D The Arthroplasty System can also be used for primary knee arthroplasty procedures.

[0246] FIG. 26A to FIG. 26D Various views of a reamer 750 are shown that can be used in conjunction with the oval sleeve 700. The reamer 750 can include FIG. 25A to FIG. 25DHowever, the reamer 750 may further include one or more cutting edges 755 disposed about the body of the reamer 750 and configured to cut / rasp the surface of the bone (e.g., tibia, femur, etc.) to prepare the bone to receive the elliptical sleeve 700.

[0247] In some embodiments, the reamer 750 may be slightly smaller in size than a corresponding oval sleeve of the arthroplasty system to ensure a tight fit when the oval sleeve 700 is press-fit into the bone that has been prepared by the reamer 750 .

[0248] Figures 27 to 29F Various views of an arthroplasty system or knee arthroplasty system according to another embodiment of the present disclosure are illustrated. Specifically, Fig. 27 is an exploded view of the arthroplasty system; Fig.28 is a perspective view of the arthroplasty system after assembly; Fig.29A is a lateral view of the femoral component of the arthroplasty system; Fig.29B is a posterior view of the femoral prosthesis; Fig.29C is the medial lateral view of the femoral component; Fig.29D is the anterior view of the femoral prosthesis; Fig.29E is a top view of the femoral prosthesis; and Fig.29F This is a bottom view of the femoral prosthesis.

[0249] In some embodiments, Figures 27 to 29F The arthroplasty system of may generally include a locking fastener 50 , a component attachment feature 20 , a stem adapter 300 , a stem 400 , and a femoral component or femoral prosthesis 800 .

[0250] In some embodiments, locking fastener 50, component attachment feature 20, rod adapter 300, and rod 400 may include the same / similar features as other locking fasteners, component attachment features, rod adapters, and rods discussed herein.

[0251] In some embodiments, the femoral prosthesis 800 may generally include a joint-facing side 1 including an articular surface 3, a femoral articular surface, a first condyle articular surface 841, a second condyle articular surface 842, and / or a patellar articular surface 843. The femoral prosthesis 800 may also include a bone-facing side 2 including a bone-engaging surface 4, which may or may not include a porous surface coating for cementless applications, and one or more filler block connection interfaces 810.

[0252] In some embodiments, the porous surface coating may be an additive surface coating (e.g., a porous titanium surface or other porous metal surface), a nanocoating, or other treatment that may be configured to promote bone ingrowth for non-bone cement (or bone cement) applications.

[0253] In some embodiments, Figures 27 to 29F The arthroplasty system may be used for revision knee arthroplasty procedures, which may require the rod 400 or an intramedullary rod for additional stability. However, it will also be understood that Figures 27 to 29F The Arthroplasty System can also be used for primary knee arthroplasty procedures.

[0254] In some embodiments, the femoral prosthesis 800 may also include a prosthesis attachment feature 10 or a first adjustable attachment feature, as previously described herein. Figures 1 to 5D The prosthesis attachment feature 10 can be formed in / on the bone-facing side 2 of the femoral prosthesis 800 , and the recess diameter 14 can be sized to fit the femoral prosthesis 800 .

[0255] In some embodiments, the prosthetic attachment feature 10 may include a circular shape having a diameter of at least 10 mm.

[0256] However, in some embodiments, the prosthetic attachment feature 10 may also include a circular shape having a diameter less than 10 mm.

[0257] In some embodiments, the prosthetic attachment feature 10 may include a circular shape having a diameter of at least 20 mm.

[0258] In some embodiments, the prosthetic attachment feature 10 may include a circular shape having a diameter of at least 30 mm.

[0259] In some embodiments, the prosthetic attachment feature 10 may include a circular shape having a diameter of at least 40 mm.

[0260] In some embodiments, the prosthetic attachment feature 10 may include a circular shape having a diameter of at least 50 mm.

[0261] The component attachment feature 20 may also be sized to fit the recess diameter 14. As previously discussed, this may result in the translating member 30 including the protrusion 36.

[0262] Fig.30 and Fig.31 An exploded view and an assembled perspective view of an arthroplasty system or a knee arthroplasty system according to another embodiment of the present disclosure are illustrated.

[0263] In some embodiments, Fig.30 and Fig.31The arthroplasty system of may generally include a locking fastener 50, a femoral prosthesis 800, a component attachment feature 20, an oval sleeve 700, and a stem 400, as previously described herein.

[0264] In some embodiments, Fig.30 and Fig.31 The arthroplasty system may be used for revision knee arthroplasty procedures, which may require the rod 400, intramedullary rod and / or oval sleeve 700 for additional stability. However, it will also be understood that Fig.30 and Fig.31 The Arthroplasty System can also be used for primary knee arthroplasty procedures.

[0265] For example, in some embodiments, Fig.30 and Fig.31 The arthroplasty system of can be modified to include only the locking fastener 50, the femoral prosthesis 800, the component attachment feature 20 and the oval sleeve 700 (or the tapered sleeve 600, or a shorter rod, or another sleeve or keel, etc.), but not Fig.30 and Fig.31 In these embodiments, the arthroplasty system may be referred to as a primary arthroplasty system that may be used in a primary arthroplasty procedure to repair a diseased knee joint that may or may not have undergone a previous arthroplasty procedure. In any case, the femur may still be healthy enough to support a primary arthroplasty system that does not require the rod 400 (or another long rod or femoral intramedullary rod, etc.) to provide the additional stability that may be required for a revision arthroplasty procedure.

[0266] In some embodiments, a method for replacing a natural joint surface on a bone may include: movably engaging a first adjustable attachment feature of an arthroplasty prosthesis with a second adjustable attachment feature of a bone anchoring component to movably connect the bone anchoring component to a bone-facing side of the arthroplasty prosthesis; securing a bone-engaging surface of the bone anchoring component to a resected surface of the bone; and replacing the natural joint surface on the bone with the joint surface on the joint-facing side of the arthroplasty prosthesis.

[0267] In some embodiments, movably engaging the first adjustable attachment feature with the second adjustable attachment feature may include inserting a rotation plate of the first adjustable attachment feature into a rotation recess of the second adjustable attachment feature to rotatably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0268] In some embodiments, movably engaging the first adjustable attachment feature with the second adjustable attachment feature may include inserting a rotation plate of the second adjustable attachment feature into a rotation recess of the first adjustable attachment feature to rotatably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0269] In some embodiments, movably engaging the first adjustable attachment feature with the second adjustable attachment feature may include engaging a translational connector of the first adjustable attachment feature with a translational member of the second adjustable attachment feature to translationally couple the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

[0270] In some embodiments, movably engaging the first adjustable attachment feature with the second adjustable attachment feature may include engaging a translational connector of the second adjustable attachment feature with a translational member of the first adjustable attachment feature to translationally couple the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

[0271] In some embodiments, movably engaging a first adjustable attachment feature with a second adjustable attachment feature may include: inserting a rotation plate of the second adjustable attachment feature into a rotation recess of the first adjustable attachment feature to rotatably connect the bone anchor component to the bone-facing side of the arthroplasty prosthesis; and engaging a translation connector of the bone anchor component with a translation member of the rotation plate to movably connect the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

[0272] In some embodiments, the method may further include engaging a bone engaging surface of the bone anchoring member with a resected surface of the bone; and transmitting at least one force between the resected surface and the bone engaging surface to movably self-position the bone anchoring member relative to the bone-facing side of the arthroplasty prosthesis.

[0273] In some embodiments, the method may further include activating a locking mechanism (such as locking fastener 50 as one non-limiting example) to prevent further movement of the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

[0274] In some embodiments, a method for replacing a natural articular surface on a bone of a knee joint may include: mating a prosthesis attachment feature of a knee arthroplasty prosthesis with one of a primary attachment feature of a primary bone anchoring component and a revision attachment feature of a revision bone anchoring component to removably couple one of the primary bone anchoring component and the revision bone anchoring component to a bone-facing side of the knee arthroplasty prosthesis. The method may also include: fixing one of a primary bone engagement surface of the primary bone anchoring component and a revision bone engagement surface of the revision bone anchoring component to a resected surface of the bone; and replacing the natural articular surface on the bone with the articular surface on the joint-facing side of the knee arthroplasty prosthesis. When the primary bone anchoring component is fixed to the bone, at least a majority of the primary bone anchoring component may be located outside the intramedullary canal of the bone. When the revision bone anchoring component is fixed to the bone, a distal portion of the rod of the revision bone anchoring component may be capable of being fixed within the intramedullary canal of the bone.

[0275] In some embodiments, mating a prosthesis attachment feature with one of a primary attachment feature and a revision attachment feature may include inserting a prosthesis plate of the prosthesis attachment feature into one of a primary recess of the primary attachment feature and a revision recess of the revision attachment feature to removably connect one of the primary bone anchoring component and the revision bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis.

[0276] In some embodiments, mating a prosthesis attachment feature with one of a primary attachment feature and a revision attachment feature may include mating a prosthesis recess of the prosthesis attachment feature with one of a primary plate of the primary attachment feature and a revision plate of the revision attachment feature to removably connect one of the primary bone anchoring component and the revision bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis.

[0277] In some embodiments, mating a prosthesis attachment feature with one of a primary attachment feature and a revision attachment feature may include mating a prosthesis translation member of the prosthesis attachment feature with one of a primary translation connector of the primary attachment feature and a revision translation connector of the revision attachment feature to removably couple one of the primary bone anchor component and the revision bone anchor component to a bone-facing side of the knee arthroplasty prosthesis.

[0278] In some embodiments, mating a prosthesis attachment feature with one of a primary attachment feature and a revision attachment feature may include mating a prosthesis translation connector of the prosthesis attachment feature with one of a primary translation member of the primary attachment feature and a revision translation member of the revision attachment feature to removably couple one of the primary bone anchor component and the revision bone anchor component to a bone-facing side of the knee arthroplasty prosthesis.

[0279] In some embodiments, the method may further include engaging one of the primary bone engaging surface and the revision bone engaging surface with a resected surface of the bone; and transmitting at least one force between the resected surface and one of the primary bone engaging surface and the revision bone engaging surface to movably self-position one of the primary bone anchoring component and the revision bone anchoring component relative to the bone-facing side of the knee arthroplasty prosthesis.

[0280] In some embodiments, the method may further include activating a locking mechanism (such as locking fastener 50 as a non-limiting example) to prevent further movement of one of the primary bone anchor component and the revision bone anchor component relative to the bone-facing side of the knee arthroplasty prosthesis.

[0281] In some embodiments, the knee arthroplasty prosthesis may include one of: a tibial baseplate having a tibial articular surface on a joint-facing side of the tibial baseplate; and a femoral prosthesis having a femoral articular surface on a joint-facing side of the femoral prosthesis. The primary bone anchoring component may include at least one of: a short stem, a keel, a sleeve, an adapter, and a filler block.

[0282] In some embodiments, the revision bone anchor component may further include at least one of: a keel, a sleeve, an adapter, and a filler block.

[0283] In some embodiments, a method for replacing a natural articular surface on a bone of a knee joint may include selecting any of: a primary bone anchoring component having a primary bone engagement surface and a primary attachment feature that can be fixed to a resected surface of a bone; and a revision bone anchoring component having a revision bone engagement surface and a revision attachment feature that can be fixed to a resected surface of a bone. The method may also include: rotatably and / or translationally mating a prosthesis attachment feature of a knee arthroplasty prosthesis with any of the primary attachment feature and the revision attachment feature to connect any of the primary bone anchoring component and the revision bone anchoring component to a bone-facing side of the knee arthroplasty prosthesis. The method may also include: fixing any of the primary bone engagement surface and the revision bone engagement surface to the resected surface of the bone; and replacing the natural articular surface on the bone with the articular surface on the joint-facing side of the knee arthroplasty prosthesis.

[0284] In some embodiments, rotatably and / or translationally mating a prosthetic attachment feature with either a primary attachment feature or a revision attachment feature may include inserting a prosthetic plate of the prosthetic attachment feature into either a primary recess of the primary attachment feature or a revision recess of the revision attachment feature to connect either a primary bone anchor component or a revision bone anchor component to the bone-facing side of the knee arthroplasty prosthesis.

[0285] In some embodiments, rotatably and / or translationally engaging a prosthesis attachment feature with either a primary attachment feature or a revision attachment feature may include engaging a prosthesis recess of the prosthesis attachment feature with either a primary plate of the primary attachment feature or a revision plate of the revision attachment feature to connect either a primary bone anchor component or a revision bone anchor component to a bone-facing side of a knee arthroplasty prosthesis.

[0286] In some embodiments, rotatably and / or translationally engaging a prosthesis attachment feature with either a primary attachment feature or a revision attachment feature may include engaging a prosthesis translation member of the prosthesis attachment feature with either a primary translation connector of the primary attachment feature or a revision translation connector of the revision attachment feature to removably couple either a primary bone anchor component or a revision bone anchor component to a bone-facing side of a knee arthroplasty prosthesis.

[0287] In some embodiments, rotatably and / or translationally engaging a prosthesis attachment feature with either a primary attachment feature or a revision attachment feature may include engaging a prosthesis translation connector of the prosthesis attachment feature with either a primary translation member of the primary attachment feature or a revision translation member of the revision attachment feature to removably couple either a primary bone anchor component or a revision bone anchor component to a bone-facing side of a knee arthroplasty prosthesis.

[0288] In some embodiments, the method may further include engaging either the primary bone engaging surface and the revision bone engaging surface with a resected surface of the bone; and transmitting at least one force between the resected surface and either the primary bone engaging surface and the revision bone engaging surface to movably self-position either the primary bone anchoring component and the revision bone anchoring component relative to the bone-facing side of the knee arthroplasty prosthesis.

[0289] In some embodiments, the method may further include activating a locking mechanism (such as locking fastener 50 as one non-limiting example) to prevent further movement of either the primary bone anchor component and the revision bone anchor component relative to the bone-facing side of the knee arthroplasty prosthesis.

[0290] In some embodiments, activating the locking mechanism can include rotating the locking fastener 50 in a first direction to prevent further movement of either the primary bone anchor component and the revision bone anchor component relative to the bone-facing side of the knee arthroplasty prosthesis.

[0291] In some embodiments, releasing the locking mechanism can include rotating the locking fastener 50 in a second direction to allow movement of either the primary bone anchor component and the revision bone anchor component relative to the bone-facing side of the knee arthroplasty prosthesis.

[0292] In some embodiments, when the primary bone anchoring component is secured to the bone, at least a majority of the primary bone anchoring component may be located outside the intramedullary canal of the bone, and when the revision bone anchoring component is secured to the bone, a distal portion of the shaft of the revision bone anchoring component may be configured to be secured within the intramedullary canal of the bone.

[0293] In some embodiments, the revision bone anchor component may further include at least one of: a keel, a sleeve, an adapter, and a filler block.

[0294] In some embodiments, the primary bone anchoring component may include at least one of: a short shaft, a keel, a sleeve, an adapter, and a filler block.

[0295] In some embodiments, a knee arthroplasty prosthesis may include a tibial baseplate having a tibial articular surface on a joint-facing side of the tibial baseplate.

[0296] In some embodiments, a knee arthroplasty prosthesis may include a femoral prosthesis having a femoral articular surface on a joint-facing side of the femoral prosthesis.

[0297] In some embodiments, a method for replacing a natural joint surface on a bone may include: removably mating a prosthesis attachment feature of an arthroplasty prosthesis with a component attachment feature of a bone anchoring component to removably couple the bone anchoring component to a bone-facing side of the arthroplasty prosthesis. The method may also include: securing a bone-engaging surface of the bone anchoring component to a resected surface of the bone; and replacing the natural joint surface on the bone with the joint surface on the joint-facing side of the arthroplasty prosthesis. The prosthesis attachment feature may also include a circular shape having a diameter of at least 10 mm.

[0298] In some embodiments, the prosthesis attachment feature may include a first circular shape having a first diameter of at least 10 mm, the component attachment feature may include a second circular shape having a second diameter of at least 10 mm, and the prosthesis attachment feature and the component attachment feature may include circular shapes that complement each other.

[0299] In some embodiments, the diameter of the circular shape may be at least 20 mm.

[0300] In some embodiments, the diameter of the circular shape may be at least 30 mm.

[0301] In some embodiments, removably mating the prosthesis attachment feature with the component attachment feature may include inserting a prosthesis plate of the prosthesis attachment feature into a component recess of the component attachment feature to removably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

[0302] In some embodiments, the method may further include engaging the bone engaging surface with a resected surface of the bone; and transmitting at least one force between the resected surface and the bone engaging surface to movably self-position the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

[0303] In some embodiments, the method may further include activating a locking mechanism (such as locking fastener 50 as one non-limiting example) to prevent further movement of the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

[0304] In some embodiments, activating the locking mechanism can include rotating the locking fastener 50 in a first direction to prevent further movement of the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

[0305] In some embodiments, releasing the locking mechanism can include rotating the locking fastener 50 in a second direction to allow movement of either the primary bone anchor component and the revision bone anchor component relative to the bone-facing side of the knee arthroplasty prosthesis.

[0306] In some embodiments, the method may further include engaging at least one first anti-rotation feature of the arthroplasty prosthesis with at least one second anti-rotation feature of the bone anchoring component to resist rotation of the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

[0307] In some embodiments, the arthroplasty prosthesis may include one of: a tibial baseplate having a tibial articular surface on a joint-facing side of the tibial baseplate; and a femoral prosthesis having a femoral articular surface on a joint-facing side of the femoral prosthesis. The bone anchoring component may also include at least one of: a rod, a keel, a sleeve, an adapter, and a filler block.

[0308] Any program or method disclosed herein may include one or more steps or actions for performing the described method. Method steps and / or actions may be interchangeable with each other. In other words, unless the correct operation of the embodiment requires a specific order of steps or actions, the order and / or use of specific steps and / or actions may be modified.

[0309] References throughout this specification to "an embodiment" or "the embodiment" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment. Therefore, the phrases or variations thereof recited throughout this specification are not necessarily all referring to the same embodiment.

[0310] Similarly, it should be appreciated that in the above description of the embodiments, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of simplifying the present disclosure. However, this method of the present disclosure should not be interpreted as reflecting the intention that any embodiment requires more features than those explicitly described in the embodiment. On the contrary, the inventive aspects lie in the combination of less than all the features of any single aforementioned disclosed embodiment.

[0311] The recitation of the term "first" with respect to a feature or element does not necessarily imply the presence of a second or additional such feature or element. Elements recited in a means-plus-function format are intended to be interpreted in accordance with 35 U.S.C. §112(f). It will be apparent to those skilled in the art that changes may be made to the details of the above-described embodiments without departing from the basic principles set forth herein.

[0312] The phrases "connected to," "coupled to," "engaged with," and "in communication with" refer to any form of interaction between two or more entities, including mechanical, electrical, magnetic, electromagnetic, fluid, and thermal interactions. Two components may be functionally coupled to each other even if they are not in direct contact with each other. The term "coupled" may include components coupled to each other via integral formation, components removably and / or non-removably coupled to each other, components functionally coupled to each other through one or more intermediate components, and the like. The term "adjacent" refers to items that can be in direct physical contact with each other, although the items may not necessarily be attached together. The phrase "fluid communication" refers to two or more features that are connected so that a fluid within one feature can enter another feature. As defined herein, the term "substantially" means within + / - 20% of a target value, a measured value, or a desired characteristic.

[0313] Although specific embodiments and applications of the present disclosure have been illustrated and described, it should be understood that the scope of the present disclosure is not limited to the precise configurations and components disclosed herein. Various modifications, changes and variations that will be apparent to those skilled in the art may be made to the arrangements, operations and details of the devices, systems, methods and / or apparatus disclosed herein.

Claims

1. An arthroplasty system for replacing a natural joint surface on a bone, the arthroplasty system comprising: An arthroplasty prosthesis, the arthroplasty prosthesis comprising: a joint-facing side, the joint-facing side comprising an articular surface; and a bone-facing side comprising a first adjustable attachment feature; and A bone anchoring component, the bone anchoring component comprising: a bone engaging surface securable to a resected surface of the bone; and a second adjustable attachment feature; Wherein the first adjustable attachment feature is configured to movably cooperate with the second adjustable attachment feature to movably couple the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

2. The arthroplasty system of claim 1, wherein: The first adjustable attachment feature includes a rotation plate coupled to the bone-facing side of the arthroplasty prosthesis; and The second adjustable attachment feature includes a rotation recess formed in the bone anchoring member and configured to receive the rotation plate therein to rotatably couple the bone anchoring member to the bone-facing side of the arthroplasty prosthesis.

3. The arthroplasty system of claim 1 , wherein: The first adjustable attachment feature comprises a rotational recess formed in the bone-facing side of the arthroplasty prosthesis; and The second adjustable attachment feature includes a rotation plate coupled to the bone anchoring member and configured to cooperate with the rotation recess to rotatably couple the bone anchoring member to the bone-facing side of the arthroplasty prosthesis.

4. The arthroplasty system of claim 1 , wherein: The first adjustable attachment feature includes a translating member coupled to the bone-facing side of the arthroplasty prosthesis; and The second adjustable attachment feature includes a translation coupler configured to movably couple with the translating member and enable the bone anchoring component to: translates along the translating member in a first direction relative to the bone-facing side of the arthroplasty prosthesis; and The translating member translates along the translating member in a second direction opposite to the first direction relative to the bone-facing side of the arthroplasty prosthesis.

5. The arthroplasty system of claim 1 , wherein: The first adjustable attachment feature comprises a translation coupler on the bone-facing side of the arthroplasty prosthesis; and The second adjustable attachment feature includes a translating member configured to movably couple with the translating coupler and enable the bone anchoring component to: translates along the translation coupling in a first direction relative to the bone-facing side of the arthroplasty prosthesis; and The translation coupling translates along the translation coupling in a second direction opposite to the first direction relative to the bone-facing side of the arthroplasty prosthesis.

6. The arthroplasty system of claim 1 , wherein: The first adjustable attachment feature comprises a rotational recess formed in the bone-facing side of the arthroplasty prosthesis; and the second adjustable attachment feature comprising a rotation plate coupled to the bone anchoring member and configured to cooperate with the rotation recess to rotatably couple the bone anchoring member to the bone-facing side of the arthroplasty prosthesis; in: The rotating plate further includes a translation member coupled to the rotating plate; and The bone anchoring component further includes a translation coupler configured to be movably coupled to the translation member and to enable the bone anchoring component to: translates along the translation member in a first direction relative to the rotating plate; and The translating member translates along the translating member in a second direction opposite to the first direction relative to the rotating plate.

7. The arthroplasty system of claim 1, wherein: The arthroplasty prosthesis includes a tibial baseplate including a tibial articular surface on the joint-facing side of the tibial baseplate; and The bone anchoring component includes at least one of: a keel, a rod, a sleeve, an adapter, and a filler block.

8. The arthroplasty system of claim 1, wherein: The arthroplasty prosthesis includes a femoral prosthesis including a femoral articular surface on the joint-facing side of the femoral prosthesis; and The bone anchoring component includes at least one of: a keel, a rod, a sleeve, an adapter, and a filler block.

9. A knee arthroplasty system for replacing a natural articular surface on a bone of a knee joint, the knee arthroplasty system comprising: A knee arthroplasty prosthesis, the knee arthroplasty prosthesis comprising: a joint-facing side, the joint-facing side comprising an articular surface; and a bone-facing side, the bone-facing side comprising a prosthesis attachment feature; A primary bone anchoring component, the primary bone anchoring component comprising: a primary bone-engaging surface securable to a resected surface of the bone; and Initial attachment features; wherein when the primary bone anchoring member is anchored to the bone, at least a majority of the primary bone anchoring member is located outside the intramedullary canal of the bone; and A revision bone anchoring component, the revision bone anchoring component comprising: Renovation attachment features; and a rod including a distal portion securable within the intramedullary canal of the bone when the revision bone anchoring member is anchored to the bone; and in: the prosthesis attachment feature being configured to removably couple the primary bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis by mating with the primary attachment feature; and The prosthesis attachment feature is configured to removably couple the revision bone anchor component to the bone-facing side of the knee arthroplasty prosthesis by mating with the revision attachment feature.

10. The knee arthroplasty system of claim 9, wherein: The prosthesis attachment feature includes a prosthesis plate coupled to the bone-facing side of the knee arthroplasty prosthesis; the primary attachment feature includes a primary recess formed in the primary bone anchoring component and configured to removably mate with the prosthesis plate; and The revision attachment feature includes a revision recess formed in the revision bone anchor component and configured to removably mate with the prosthetic plate.

11. The knee arthroplasty system of claim 9, wherein: The prosthesis attachment feature includes a prosthesis recess formed in the bone-facing side of the knee arthroplasty prosthesis; The primary attachment feature includes a primary plate coupled to the primary bone anchoring member and configured to removably mate with the prosthetic recess; and The revision attachment feature includes a revision plate coupled to the revision bone anchor component and configured to removably mate with the prosthetic recess.

12. The knee arthroplasty system of claim 9, wherein: The prosthesis attachment feature includes a prosthesis translation member on the bone-facing side of the knee arthroplasty prosthesis; The primary attachment feature includes a primary translation coupler configured to removably mate with the prosthetic translating member; and The revision attachment feature includes a revision translating coupler configured to removably mate with the prosthetic translating member.

13. The knee arthroplasty system of claim 9, wherein: The prosthesis attachment feature includes a prosthesis translation coupler on the bone-facing side of the knee arthroplasty prosthesis; The primary attachment feature includes a primary translation member configured to removably mate with the prosthesis translation coupler; and The revision attachment feature includes a revision translating member configured to removably mate with the prosthetic translating coupler.

14. The knee arthroplasty system of claim 9, wherein: The knee arthroplasty prosthesis includes a tibial baseplate including a tibial articular surface on the joint-facing side of the tibial baseplate; and The primary bone anchoring component includes at least one of the following: a short rod, a keel, a sleeve, an adapter, and a filling block.

15. The knee arthroplasty system of claim 14, wherein: The revision bone anchor component further includes at least one of: a keel, a sleeve, an adapter, and a filler block.

16. The knee arthroplasty system of claim 9, wherein: The knee arthroplasty prosthesis includes a femoral prosthesis including a femoral articular surface on the joint-facing side of the femoral prosthesis; and The primary bone anchoring component includes at least one of the following: a short rod, a keel, a sleeve, an adapter, and a filling block.

17. The knee arthroplasty system of claim 16, wherein: The revision bone anchor component further includes at least one of: a keel, a sleeve, an adapter, and a filler block.

18. A knee arthroplasty system for replacing a natural articular surface on a bone of a knee joint, the knee arthroplasty system comprising: A knee arthroplasty prosthesis, the knee arthroplasty prosthesis comprising: a joint-facing side, the joint-facing side comprising an articular surface; and a bone-facing side, the bone-facing side including a prosthesis attachment feature formed thereon; A primary bone anchoring component, the primary bone anchoring component comprising: a primary bone-engaging surface securable to a resected primary surface of the bone; and Initial attachment features; and A revision bone anchoring component, the revision bone anchoring component comprising: a revision bone engaging surface securable to a resected revision surface of the bone; and Renovation attachment features; in: The prosthesis attachment feature is configured to cooperate with either of the primary attachment feature and the revision attachment feature to couple either of the primary bone anchor component and the revision bone anchor component to the bone-facing side of the knee arthroplasty prosthesis; and The prosthetic attachment feature is configured to rotatably and / or translationally mate with at least one of the primary attachment feature and the revision attachment feature.

19. The knee arthroplasty system of claim 18, wherein: the prosthesis attachment feature comprising a prosthesis plate coupled to the bone-facing side of the knee arthroplasty prosthesis; the primary attachment feature comprising a primary recess formed in the primary bone anchoring component and configured to rotatably mate with the prosthesis plate; and The revision attachment feature includes a revision recess formed in the revision bone anchor component and configured to rotatably mate with the prosthetic plate.

20. The knee arthroplasty system of claim 18, wherein: The prosthesis attachment feature includes a prosthesis recess formed in the bone-facing side of the knee arthroplasty prosthesis; The primary attachment feature includes a primary plate coupled to the primary bone anchor component and configured to rotatably mate with the prosthetic recess; and The revision attachment feature includes a revision plate coupled to the revision bone anchor component and configured to rotatably mate with the prosthetic recess.

21. The knee arthroplasty system of claim 18, wherein: The prosthesis attachment feature includes a prosthesis translation member on the bone-facing side of the knee arthroplasty prosthesis; The primary attachment feature includes a primary translation coupler configured to translationally mate with the prosthetic translating member; and The revision attachment feature includes a revision translating coupler configured to translationally mate with the prosthetic translating member.

22. The knee arthroplasty system of claim 18, wherein: The prosthesis attachment feature includes a prosthesis translation coupler on the bone-facing side of the knee arthroplasty prosthesis; The primary attachment feature includes a primary translation member configured to translationally mate with the prosthesis translation coupler; and The revision attachment feature includes a revision translating member configured to translationally mate with the prosthesis translating coupler.

23. The knee arthroplasty system of claim 18, wherein: The prosthesis attachment feature includes a prosthesis recess formed in the bone-facing side of the knee arthroplasty prosthesis; and the primary attachment feature comprising a primary plate coupled to the primary bone anchoring component and configured to rotatably mate with the prosthesis recess to rotatably couple the primary bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis; in: The primary plate further includes a primary translation member coupled to the primary plate; and The primary bone anchoring component further includes a primary translation coupler configured to translationally cooperate with the primary translation member and enable the primary bone anchoring component to: translating along the primary translation member in a first direction relative to the primary plate; and The primary translation member translates relative to the primary plate in a second direction opposite to the first direction.

24. The knee arthroplasty system of claim 18, wherein: The prosthesis attachment feature includes a prosthesis recess formed in the bone-facing side of the knee arthroplasty prosthesis; and the revision attachment feature comprising a revision plate coupled to the revision bone anchoring component and configured to rotatably mate with the prosthesis recess to rotatably couple the revision bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis; in: The renovation panel further includes a renovation translation member coupled to the renovation panel; and The revision bone anchor component further includes a revision translation coupler configured to translationally cooperate with the revision translation member and enable the revision bone anchor component to: translates along the renovation translating member in a first direction relative to the renovation panel; and The renovation translating member translates along the renovation translating member relative to the renovation plate in a second direction opposite to the first direction.

25. The knee arthroplasty system of claim 18, wherein: The knee arthroplasty prosthesis includes a tibial baseplate including a tibial articular surface on the joint-facing side of the tibial baseplate.

26. The knee arthroplasty system of claim 18, wherein: The knee arthroplasty prosthesis includes a femoral prosthesis including a femoral articular surface on the joint-facing side of the femoral prosthesis.

27. The knee arthroplasty system of claim 18, wherein: The primary bone anchoring component includes at least one of the following: a short rod, a keel, a sleeve, an adapter, and a filling block.

28. The knee arthroplasty system of claim 27, wherein: When the primary bone anchoring member is anchored to the bone, at least a majority of the primary bone anchoring member is located outside the intramedullary canal of the bone.

29. The knee arthroplasty system of claim 18, wherein: The revision bone anchoring component includes a rod, wherein a distal portion of the rod is securable within an intramedullary canal of the bone when the revision bone anchoring component is anchored to the bone.

30. The knee arthroplasty system of claim 29, wherein: The revision bone anchor component further includes at least one of: a keel, a sleeve, an adapter, and a filler block.

31. An arthroplasty system for replacing a natural articular surface on a bone, the arthroplasty system comprising: An arthroplasty prosthesis, the arthroplasty prosthesis comprising: a joint-facing side, the joint-facing side comprising an articular surface; and a bone-facing side comprising a prosthesis attachment feature; and A bone anchoring component, the bone anchoring component comprising: a bone engaging surface securable to a resected surface of the bone; and component attachment features; in: the component attachment feature being configured to removably mate with the prosthesis attachment feature to removably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis; and The prosthesis attachment feature comprises a circular shape having a diameter of at least 10 mm.

32. The arthroplasty system of claim 31 , wherein: The prosthesis attachment feature comprises a first circular shape having a first diameter of at least 10 mm; The component attachment feature comprises a second circular shape having a second diameter of at least 10 mm; and The prosthesis attachment feature and the component attachment feature include circular shapes that complement each other.

33. The arthroplasty system of claim 31 , wherein: The circular shape has a diameter of at least 20 mm.

34. The arthroplasty system of claim 31 , wherein: The circular shape has a diameter of at least 30 mm.

35. The arthroplasty system of claim 31 , wherein: The prosthesis attachment feature includes a prosthesis plate coupled to the bone-facing side of the arthroplasty prosthesis; and The component attachment feature includes a component recess configured to removably mate with the prosthetic plate to removably couple the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

36. The arthroplasty system of claim 31 , wherein: The prosthesis attachment feature includes a prosthesis recess formed in the bone-facing side of the arthroplasty prosthesis; and The component attachment feature includes a component plate coupled to the bone anchoring component and configured to removably mate with the prosthesis recess to removably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

37. The arthroplasty system of claim 31 , wherein: The arthroplasty prosthesis includes a femoral prosthesis including a femoral articular surface on the joint-facing side of the femoral prosthesis.

38. The arthroplasty system of claim 31 , wherein: The arthroplasty prosthesis includes a tibial baseplate including a tibial articular surface on the joint-facing side of the tibial baseplate.

39. The arthroplasty system of claim 38, wherein: The tibial baseplate includes at least one first anti-rotation feature formed on the bone-facing side of the tibial baseplate; and The bone anchoring component includes at least one second anti-rotation feature configured to removably mate with the first anti-rotation feature and resist rotation of the bone anchoring component relative to the tibial baseplate.

40. The arthroplasty system of claim 31 , wherein: The bone anchoring component includes at least one of: a keel, a rod, a sleeve, an adapter, and a filler block.

41. A method for replacing a natural articular surface on a bone, comprising: movably engaging a first adjustable attachment feature of an arthroplasty prosthesis with a second adjustable attachment feature of a bone anchoring component to movably couple the bone anchoring component to a bone-facing side of the arthroplasty prosthesis; securing a bone engaging surface of the bone anchoring member to a resected surface of the bone; as well as The natural articular surface on the bone is replaced with the articular surface on the joint-facing side of the arthroplasty prosthesis.

42. The method according to claim 41, wherein: Removably engaging the first adjustable attachment feature with the second adjustable attachment feature includes: Inserting the rotation plate of the first adjustable attachment feature into the rotation recess of the second adjustable attachment feature to rotatably couple the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

43. The method of claim 41, wherein: Removably engaging the first adjustable attachment feature with the second adjustable attachment feature includes: Inserting the rotation plate of the second adjustable attachment feature into the rotation recess of the first adjustable attachment feature to rotatably couple the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

44. The method of claim 41, wherein: Removably engaging the first adjustable attachment feature with the second adjustable attachment feature includes: The translating coupler of the first adjustable attachment feature is mated with the translating member of the second adjustable attachment feature to translationally couple the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

45. The method of claim 41, wherein: Removably engaging the first adjustable attachment feature with the second adjustable attachment feature includes: The translating coupler of the second adjustable attachment feature is mated with the translating member of the first adjustable attachment feature to translationally couple the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

46. ​​The method of claim 41, wherein: Removably engaging the first adjustable attachment feature with the second adjustable attachment feature includes: inserting the rotation plate of the second adjustable attachment feature into the rotation recess of the first adjustable attachment feature to rotatably couple the bone anchor component to the bone-facing side of the arthroplasty prosthesis; and The translating coupler of the bone anchoring component is mated with the translating member of the rotation plate to translatably couple the bone anchoring component to the bone-facing side of the arthroplasty prosthesis.

47. The method of claim 41, further comprising: engaging the bone engaging surface of the bone anchoring member with the resected surface of the bone; as well as At least one force is transmitted between the resecting surface and the bone engaging surface to movably self-position the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

48. The method of claim 47, further comprising: A locking mechanism is activated to prevent further movement of the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

49. A method for replacing a natural articular surface on a bone of a knee joint, comprising: mating a prosthesis attachment feature of a knee arthroplasty prosthesis with one of a primary attachment feature of a primary bone anchor component and a revision attachment feature of a revision bone anchor component to removably couple one of the primary bone anchor component and the revision bone anchor component to a bone-facing side of the knee arthroplasty prosthesis; securing one of the primary bone engaging surface of the primary bone anchoring member and the revision bone engaging surface of the revision bone anchoring member to the resected surface of the bone; as well as replacing the natural articular surface on the bone with an articular surface on the joint-facing side of the knee arthroplasty prosthesis, in: When the primary bone anchoring member is secured to the bone, at least a majority of the primary bone anchoring member is located outside of the intramedullary canal of the bone; and When the revision bone anchoring member is secured to the bone, a distal portion of the shaft of the revision bone anchoring member can be secured within the intramedullary canal of the bone.

50. The method of claim 49, wherein: Coupling the prosthetic attachment feature with one of the primary attachment feature and the revision attachment feature comprises: A prosthesis plate of the prosthesis attachment feature is inserted into one of the primary recess of the primary attachment feature and the revision recess of the revision attachment feature to removably couple one of the primary bone anchoring component and the revision bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis.

51. The method of claim 49, wherein: Coupling the prosthetic attachment feature with one of the primary attachment feature and the revision attachment feature comprises: The prosthesis recess of the prosthesis attachment feature is mated with one of the primary plate of the primary attachment feature and the revision plate of the revision attachment feature to removably couple one of the primary bone anchoring component and the revision bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis.

52. The method of claim 49, wherein: Coupling the prosthetic attachment feature with one of the primary attachment feature and the revision attachment feature comprises: The prosthesis translating member of the prosthesis attachment feature is mated with one of the primary translation coupling of the primary attachment feature and the revision translation coupling of the revision attachment feature to removably couple one of the primary bone anchoring component and the revision bone anchoring component to the bone-facing side of the knee arthroplasty prosthesis.

53. The method of claim 49, wherein: Coupling the prosthetic attachment feature with one of the primary attachment feature and the revision attachment feature comprises: The prosthesis translation coupler of the prosthesis attachment feature is mated with one of the primary translation member of the primary attachment feature and the revision translation member of the revision attachment feature to removably couple one of the primary bone anchor component and the revision bone anchor component to the bone-facing side of the knee arthroplasty prosthesis.

54. The method of claim 49, further comprising: engaging one of the primary bone-engaging surface and the revision bone-engaging surface with the resected surface of the bone; as well as At least one force is transmitted between the resection surface and one of the primary bone engaging surface and the revision bone engaging surface to movably self-position one of the primary bone anchoring component and the revision bone anchoring component relative to the bone-facing side of the knee arthroplasty prosthesis.

55. The method of claim 54, further comprising: A locking mechanism is activated to prevent further movement of one of the primary bone anchor component and the revision bone anchor component relative to the bone-facing side of the knee arthroplasty prosthesis.

56. The method of claim 49, wherein: The knee arthroplasty prosthesis comprises one of the following: a tibial baseplate including a tibial articular surface on the joint-facing side of the tibial baseplate; and a femoral prosthesis comprising a femoral articular surface on the joint-facing side of the femoral prosthesis; and The primary bone anchoring component includes at least one of the following: a short rod, a keel, a sleeve, an adapter, and a filling block.

57. The method of claim 49, wherein: The revision bone anchor component further includes at least one of: a keel, a sleeve, an adapter, and a filler block.

58. A method for replacing a natural articular surface on a bone of a knee joint, comprising: Select any of the following: A primary bone anchoring component, the primary bone anchoring component comprising: a primary bone-engaging surface securable to a resected surface of the bone; and Initial attachment features; and A revision bone anchoring component, the revision bone anchoring component comprising: a revision bone engaging surface securable to the resected surface of the bone; and Renovation attachment features; rotatably and / or translationally mating a prosthesis attachment feature of a knee arthroplasty prosthesis with any of the primary attachment feature and the revision attachment feature to couple any of the primary bone anchor component and the revision bone anchor component to a bone-facing side of the knee arthroplasty prosthesis; securing any one of the primary bone-engaging surface and the revision bone-engaging surface to the resected surface of the bone; and The natural articular surface on the bone is replaced with the articular surface on the joint-facing side of the knee arthroplasty prosthesis.

59. The method of claim 58, wherein: Rotatably and / or translationally mating the prosthetic attachment feature with any of the primary attachment feature and the revision attachment feature comprises: Inserting a prosthesis plate of the prosthesis attachment feature into any one of the primary recess of the primary attachment feature and the revision recess of the revision attachment feature to couple any one of the primary bone anchor component and the revision bone anchor component to the bone-facing side of the knee arthroplasty prosthesis.

60. The method of claim 58, wherein: Rotatably and / or translationally mating the prosthetic attachment feature with any of the primary attachment feature and the revision attachment feature comprises: The prosthesis recess of the prosthesis attachment feature is mated with either a primary plate of the primary attachment feature or a revision plate of the revision attachment feature to couple either the primary bone anchor component or the revision bone anchor component to the bone-facing side of the knee arthroplasty prosthesis.

61. The method of claim 58, wherein: Rotatably and / or translationally mating the prosthetic attachment feature with any of the primary attachment feature and the revision attachment feature comprises: The prosthesis translation member of the prosthesis attachment feature is mated with either the primary translation coupler of the primary attachment feature or the revision translation coupler of the revision attachment feature to removably couple either the primary bone anchor component or the revision bone anchor component to the bone-facing side of the knee arthroplasty prosthesis.

62. The method of claim 58, wherein: Rotatably and / or translationally mating the prosthetic attachment feature with any of the primary attachment feature and the revision attachment feature comprises: The prosthesis translation coupler of the prosthesis attachment feature cooperates with either the primary translation member of the primary attachment feature or the revision translation member of the revision attachment feature to removably couple either the primary bone anchor component or the revision bone anchor component to the bone-facing side of the knee arthroplasty prosthesis.

63. The method of claim 58, further comprising: engaging any one of the primary bone-engaging surface and the revision bone-engaging surface with the resected surface of the bone; as well as At least one force is transmitted between the resection surface and either of the primary bone engaging surface and the revision bone engaging surface to movably self-position either of the primary bone anchoring component and the revision bone anchoring component relative to the bone-facing side of the knee arthroplasty prosthesis.

64. The method of claim 63, further comprising: A locking mechanism is activated to prevent further movement of either the primary bone anchor component and the revision bone anchor component relative to the bone-facing side of the knee arthroplasty prosthesis.

65. The method of claim 64, wherein: Activating the locking mechanism includes rotating a locking fastener in a first direction to prevent further movement of either the primary bone anchor component and the revision bone anchor component relative to the bone-facing side of the knee arthroplasty prosthesis.

66. The method of claim 58, wherein: When the primary bone anchoring member is secured to the bone, at least a majority of the primary bone anchoring member is located outside of the intramedullary canal of the bone; and When the revision bone anchoring member is secured to the bone, a distal portion of the shaft of the revision bone anchoring member can be secured within the intramedullary canal of the bone.

67. The method of claim 66, wherein: The revision bone anchor component further includes at least one of: a keel, a sleeve, an adapter, and a filler block.

68. The method of claim 66, wherein: The primary bone anchoring component includes at least one of the following: a short rod, a keel, a sleeve, an adapter, and a filling block.

69. The method of claim 58, wherein: The knee arthroplasty prosthesis includes a tibial baseplate including a tibial articular surface on the joint-facing side of the tibial baseplate.

70. The method of claim 58, wherein: The knee arthroplasty prosthesis includes a femoral prosthesis including a femoral articular surface on the joint-facing side of the femoral prosthesis.

71. A method for replacing a natural articular surface on a bone, comprising: removably mating a prosthesis attachment feature of an arthroplasty prosthesis with a component attachment feature of a bone anchoring component to removably couple the bone anchoring component to a bone-facing side of the arthroplasty prosthesis; securing a bone engaging surface of the bone anchoring member to a resected surface of the bone; as well as replacing the natural articular surface on the bone with an articular surface on the joint-facing side of the arthroplasty prosthesis, Wherein the prosthesis attachment feature comprises a circular shape having a diameter of at least 10 mm.

72. The method of claim 71, wherein: The prosthesis attachment feature comprises a first circular shape having a first diameter of at least 10 mm; The component attachment feature comprises a second circular shape having a second diameter of at least 10 mm; and The prosthesis attachment feature and the component attachment feature include circular shapes that complement each other.

73. The method of claim 71, wherein: The circular shape has a diameter of at least 20 mm.

74. The method of claim 71, wherein: The circular shape has a diameter of at least 30 mm.

75. The method of claim 71, wherein: Removably mating the prosthesis attachment feature with the component attachment feature comprises: A prosthesis plate of the prosthesis attachment feature is inserted into the component recess of the component attachment feature to removably couple the bone anchor component to the bone-facing side of the arthroplasty prosthesis.

76. The method of claim 71, further comprising: engaging the bone engaging surface with the resected surface of the bone; as well as At least one force is transmitted between the resecting surface and the bone engaging surface to movably self-position the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

77. The method of claim 76, further comprising: A locking mechanism is activated to prevent further movement of the bone anchoring component relative to the bone-facing side of the arthroplasty prosthesis.

78. The method of claim 77, wherein: Activating the locking mechanism includes rotating a locking fastener in a first direction to prevent further movement of the bone anchor component relative to the bone-facing side of the arthroplasty prosthesis.

79. The method of claim 71, further comprising: At least one first anti-rotation feature of the arthroplasty prosthesis is engaged with at least one second anti-rotation feature of the bone anchor component to resist rotation of the bone anchor component relative to the bone-facing side of the arthroplasty prosthesis.

80. The method of claim 71, wherein: The arthroplasty prosthesis comprises one of: a tibial baseplate including a tibial articular surface on the joint-facing side of the tibial baseplate; and a femoral prosthesis comprising a femoral articular surface on the joint-facing side of the femoral prosthesis; and The bone anchoring component includes at least one of: a rod, a keel, a sleeve, an adapter, and a filling block.

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