944results about "Shoulder joints" patented technology

Surgical systems and instruments for performing shoulder repair procedures using a transhumeral approach are disclosed. The systems include a humeral guide configured to set a path of travel for a guide pin that operates bone preparation instruments with a transhumeral approach. The guide pin can selectively engage one or more bone preparation instruments disposed at a humeral resection surface and operate the tool(s) by powering the guide pin from below the humeral resection surface. A handle assembly can be used to position bone preparation instruments at the surgical site, with the handle assembly being selectively mountable to the humeral guide. The humeral guide can also have a sizer attachment coupled to it to assist in measuring and sizing locations for an implant to be placed on the humeral resection surface. Measuring, reaming, broaching, and implanting actions can all be performed with assistance from the humeral guide.

A reverse shoulder system can include, for example, a glenoid baseplate comprising a longitudinal axis, the glenoid baseplate further including a stem and a central channel within a sidewall of the stem. The stem can include a longitudinal axis. The longitudinal axis of the glenoid baseplate can be angled with respect to the longitudinal axis of the stem, wherein the longitudinal axis of the glenoid baseplate is not perpendicular with respect to the longitudinal axis of the stem. Other components including a glenosphere, tools, and methods of use are also disclosed.

A surgical planning system for use in surgical procedures to repair an anatomy of interest includes a preplanning system to generate a virtual surgical plan and a mixed reality system that includes a visualization device wearable by a user to view the virtual surgical plan projected in a real environment. The virtual surgical plan includes a 3D virtual model of the anatomy of interest. When wearing the visualization device, the user can align the 3D virtual model with the real anatomy of interest, thereby achieving a registration between details of the virtual surgical plan and the real anatomy of interest. The registration enables a surgeon to implement the virtual surgical plan on the real anatomy of interest without the use of tracking markers.

A computer-implemented method of pre-operatively evaluating bone structure for use of a bone graft in a surgical procedure can comprise generating a three-dimensional bone model of a bone of a patient for output in a video display unit, determining a volume of interest (VOI) on the three-dimensional bone model where a bone defect exists, adding an internal bone property for bone matter of the bone structure to the three-dimensional bone model at the volume of interest, analyzing the internal bone property in the volume of interest relative to a treatment for a bone defect, and outputting indicia on the video display unit that indicates utility of a bone graft for the treatment. A surgical planning system can comprise memory having instructions for implementing the computer-implemented method.

An orthopaedic joint prosthesis assembly includes a head part of an orthopaedic joint prosthesis component and an alignment guide. The head part has a spherical bearing surface for articulation with a corresponding joint surface, and an assembly surface having a first bore formed in it for receiving a spigot on another part of the orthopaedic joint prosthesis. The bore has a first axis that extends perpendicular to the assembly surface. The alignment guide has an axial portion defining a second axis and an arm extending from the axial portion. The arm includes a distal portion which is configured to engage the assembly surface, with the axial portion being arranged to engage the bearing surface of the head part when the head part is mounted within the guide such that an impaction force applied along the second axis is directed along the first axis.

A method of designing an orthopedic implant comprising: (a) iteratively evaluating possible shapes of a dynamic orthopedic implant using actual anatomical shape considerations and kinematic shape considerations; and, (b) selecting a dynamic orthopedic implant shape from one of the possible shapes, where the dynamic orthopedic implant shape selected satisfies predetermined kinematic and anatomical constraints.

An implant includes a body including a substrate and a bone interfacing lattice disposed on the substrate. The bone interfacing lattice includes at least two layers of elongate curved structural members. In addition, the at least two layers of elongate curved structural members include a first layer adjacent the substrate and a second layer adjacent the first layer. Also, the first layer has a first compressibility and the second layer has a second compressibility, wherein the second compressibility is greater than the first compressibility. Further, an interface between the first layer and the second layer is a transition region having a thickness within which the elongate curved structural members of the first layer are intermingled with the elongate curved structural members of the second layer such that a boundary of the first layer overlaps with a boundary of the second layer.

A method of implanting a shoulder prosthesis assembly is provided where the method includes advancing by rotation a base member, that includes a cylindrical member and a helical structure, into a resection face of a humerus of a patient such that the helical structure is submerged in and engages cancellous bone of and does not extend distally of an epiphysis of the humerus, the cylindrical member being accessible at the resection face of the humerus when the base member is so advanced; advancing a locking device into the base member until at least one elongate member spans a space between adjacent portions of the helical structure to contact the cancellous bone in the space; and inserting a retention portion of a reverse articular insert into the cylindrical member of the base member to directly connect the reverse articular insert with the cylindrical member of the base member.

An example method includes obtaining, by one or more processors, a target atlas of a particular patient on which an arthroplasty procedure is to be performed; selecting, by the one or more processors and based on a comparison of values of the target atlas and a plurality of reference atlases of other patients on which the arthroplasty procedure has been performed, at least one reference atlas of the plurality of reference atlases of the other patients; and determining, by the one or more processors and based on the selected at least one reference atlas, one or both of an implant size and an implant alignment for the particular patient.

A humeral prosthesis for replacing a proximal humerus includes a prosthesis body which includes a lateral surface, a medial surface, an anterior surface, a posterior surface, and a first superior surface. The lateral surface has a spherical curvature. The anterior and posterior surfaces are each planar and each intersect the first superior surface, the lateral surface, and the medial surface. A first bore extends through the first superior surface and into the prosthesis body. The prosthesis body also includes a plurality of suture openings.

Disclosed herein are systems and methods for evaluating implant condition and associated patient condition. A method for determining an implant condition can include the steps of receiving implant vibration data from an implant coupled to a bone of a patient, receiving patient reported data from the patient, and generating an implant loosening score from the implant vibration data and the patient reported data. The implant vibration data can be generated by a sensor associated with the implant. The implant loosening score can be related to movement of implant with respect to the bone.

A humeral implant is provided. The implant includes a humeral stem including a plurality of fins. At least one fin comprises a serrated bottom edge. A radial distance between an inner bottom edge of the at least one fin and a centerline of the humeral implant increases along a distal length of extension of the at least one fin. At least the serrated bottom edge of the at least one fin is configured to cut into and compact bone of the metaphysis of a humerus toward relatively denser cancellous bone of a peripheral portion of the humerus when press-fit therein, thereby providing sufficient press-fitting for cementless fixation of the humeral stem into the humerus. Related kits and methods are also provided.

A trial neck piece for a joint endoprosthesis is designed for temporary arrangement on a separate shaft body (60) that is insertable into a tubular bone (9). It comprises a fastening region (12) which can be plugged temporarily onto a head part (61) of the shaft body (60) by means of a plug connection (l l), and a neck region (IO) for receiving a joint element (19) of the joint endoprosthesis. The trial neck piece (I) is designed as a separate, plug-on attachment piece which, with its fastening region (12), can be plugged with form-fit engagement onto the head part (61) and locked. A latching device (2) is provided which comprises a plurality of latching stages for different height stages of the trial neck piece (I). The invention thus makes available an easily attachable trial neck piece which can be arranged in a defined manner in different height positions in order, on the one hand, to obtain a secure and defined arrangement and, on the other hand, to permit the setting of different heights. The invention further relates to an arrangement with a trial neck piece and with an excavating tool, in particular a reamer, and to an instrument set comprising a trial neck piece and an insertion instrument.

Disclosed are prosthesis systems and methods that provide porous fixation rings by which the articulating surfaces of the implant can be exchanged such that the anatomic surfaces can be converted to reverse surfaces, while not exchanging the fixation components. Also disclosed herein are methods by which the surgeon can implant an inset anatomic articulating glenoid implant whereby at a later date, can remove the anatomic articulating surface and replace it with a reverse articulating surface such that the primary means of fixation remains well fixed in the glenoid fossa at the moment of articular exchange.

A system for an anatomical total shoulder arthroplasty or reverse total shoulder arthroplasty can include an infinitely adjustable augment angle baseplate, an implant, a baseplate, an engagement member, and a prosthetic head. The infinitely adjustable augment angle baseplate can be configured to be secured to a first bone of a patient. The implant can be insertable into a second bone of a patient. The baseplate can be insertable into the implant and configured to be attached to the second bone of the patient. The engagement member can be couplable to either of the infinitely adjustable augment angle baseplate or the baseplate. The prosthetic head can be couplable to the other of the infinitely adjustable augment angle baseplate or the baseplate. The prosthetic head can be engageable with the engagement member to form a prosthetic joint between the first bone and the second bone.

A reverse shoulder system can include, for example, a glenoid baseplate comprising a longitudinal axis, the glenoid baseplate further including a stem and a central channel within a sidewall of the stem. The stem can include a longitudinal axis. The longitudinal axis of the glenoid baseplate can be angled with respect to the longitudinal axis of the stem, wherein the longitudinal axis of the glenoid baseplate is not perpendicular with respect to the longitudinal axis of the stem. Other components including a glenosphere, tools, and methods of use are also disclosed.

Disclosed are prosthesis systems and methods that provide ways by which the articulating surfaces of the implant can be exchanged such that the anatomic surfaces can be converted to reverse surfaces, while not exchanging the fixation components. Also disclosed herein are methods by which the surgeon can implant an inset anatomic articulating glenoid implant whereby at a later date, can remove the anatomic articulating surface and replace it with a reverse articulating surface such that the primary means of fixation remains well fixed in the glenoid fossa at the moment of articular exchange.

Systems and methods for a customized reusable guide for shoulder replacements. In an example embodiment, a method comprises providing an alignment compass base, wherein the alignment compass base is configured to enable rotational orientation of a radial offset insert and a K-wire guide tube with respect to a guide base, inserting the guide base component into the alignment compass base, inserting the radial offset insert into the guide base component, rotating, using a first alignment tool, the radial offset insert to a first orientation angle with respect to the guide base component, inserting the K-wire guide tube into the radial offset insert, rotating, using a second alignment tool, the K-wire guide tube to a second orientation angle with respect to the guide base component.

Systems, devices, and methods for preparing a glenoid to receive an implant using a transhumeral approach are disclosed. Various tools, such as a reamer attachment, can be disposed in a glenohumeral space proximate to the glenoid, and then a driver or other shaft can be separately introduced into the glenohumeral space. The driver can be coupled to the reamer attachment and then operated to treat or otherwise prepare the glenoid to receive an implant. After the reamer attachment is no longer needed to perform the desired treatment, it can be detached from the driver and both the reamer attachment and driver can be removed from the glenohumeral space. The disclosed systems, devices, and methods can be performed with or without a guidewire, and various other instruments, such as those for identifying a center of the glenoid, can be used.

An apparatus can include an osteotome blade including an elongate main body extending from a proximal end to a distal end, the elongate main body having a curved cross-section and defining a helical path along at least a portion of a longitudinal axis of the elongate main body, wherein the distal end includes a distal cutting edge.

A method is disclosed for making a glenoid guide that includes obtaining scapula surface profile information of a specific patient, providing a manufacturing plan for making the glenoid guide having at least one patient specific contact surface configured to contact a portion of the glenoid rim or glenoid surface and for making the guide having a rotation control feature forming member, and adapting the manufacturing plan to specify the location of the rotation control forming feature relative to a portion of the glenoid determined to benefit from augmentation based on the surface profile information.

An inverse shoulder spacer (100) for temporary replacement of an artificial shoulder joint, comprising a glenoid component (110), which is designed as a convex half-ball (115) at a distal end of the glenoid component, and a humeral component (120) which, at a proximal end of the humeral component, has a concave ball receptacle (125) for receiving the half-ball of the glenoid component, wherein the half-ball along with the ball receptacle simulates or can simulate an inverse shoulder joint. The shoulder spacer additionally has one or more pins (130) which are each connected or connectable, with a respective pin end, to one of a plurality of concave pin receptacles (140) at a proximal end of the glenoid component, such that the shoulder spacer can be fastened via the one or more pins in anchoring holes in a glenoid of a patient.

The present disclosure provides alert implants that comprise a medical device and an implantable reporting processor (IRP), where one example of such a medical device includes a component for a total knee arthroplasty (TKA) such as a tibial extension, a femoral component for hip replacements, a breast implant, a distal rod for arm or leg breakage repair, a scoliosis rod, a dynamic hip screw, a spinal interbody spacer, and tooling and methods that may be used to form the alert implant, and uses of such alert implants in the health maintenance of patients who receive the implant.

A glenoid implant system, for example, includes a glenoid implant and a glenoid cutting guide. The glenoid implant includes a body having a concave surface with a first curved edge portion and a second curved edge portion, and an attachment surface having a concave edge portion joined to the second curved edge portion of the concave surface. The concave surface and the attachment surface are disposed at an angle. The glenoid cutting guide includes a body having a convex surface engageable with a surface of a glenoid cavity and a cutting guide surface for resecting a cutout in a glenoid cavity, the cutout having a curved edge portion corresponding to the second curved edge portion of the glenoid implant.

Disclosed are prosthesis systems and methods that provide ways by which the articulating surfaces of the implant can be exchanged such that the anatomic surfaces can be converted to reverse surfaces, while not exchanging the fixation components. Also disclosed herein are methods by which the surgeon can implant an inset anatomic articulating glenoid implant whereby at a later date, can remove the anatomic articulating surface and replace it with a reverse articulating surface such that the primary means of fixation remains well fixed in the glenoid fossa at the moment of articular exchange.

A computer-implemented method of determining fixation of a prosthesis in bone matter based on bone anatomy and density information comprises generating a three-dimensional model of a bone of a patient for output in a video display unit, adding three-dimensional bone density information for the bone matter to the three-dimensional model, simulating a. preparation of the bone to produce a bone surface on the three-dimensional model, simulating placement of the prosthesis in the bone surface, estimating a fixation strength of the prosthesis to the bone matter using the bone density information at the prosthesis, and outputting indicia on the video display unit that indicates risk factors for displacement, of the prosthesis from the bone matter.

Disclosed herein is a system and method for performing pre-operative planning of total joint arthroplasty. The planning tool builds a model and analyzes and visualizes movement of the joint for various selections of implant models and placement of the components on the implants on the patient's anatomy. The tool also analyzes and visualizes motions of the joint during common activities of daily living and analyzes and functional ranges. The tool provides real time clinically relevant parameters to inform pre-surgery planning. The tool provides screw orientation visualization.

Disclosed is a system suitable for affixing an orthopedic component to a bone using a polyaxial screw comprising an orthopedic component, a screw, and a locking cap; the orthopedic component having a hole with an entry side comprising an internal helical thread and an exit side comprising an internal concave base; the screw having a head comprising a convex base adapted to engage the concave base of the hole, and a convex crown having a plurality of splines; the locking cap comprising a proximal end having a cap socket, a distal end defining a substantially circular contact edge adapted to impinge on the plurality of splines on the crown of the screw when the locking cap is inserted in the hole, and a substantially cylindrical body therebetween having an external helical thread adapted to engage the internal helical thread of the hole.

The utility model relates to the field of medical instruments, and discloses an arthroscopic bone grafting positioner which is accurate in positioning and not prone to dislocation, the arthroscopic bone grafting positioner comprises a positioning structure, a threading structure and two sleeves, the positioning structure is provided with a guide sliding groove structure, and the guide sliding groove structure comprises a guide sliding groove handle. An arc-shaped plate is fixedly connected to the position, close to the lower end, of the center of the front side wall of the guide sliding groove handle, a sliding groove is formed in the center of the lower end face of the arc-shaped plate, the threading structure comprises a sleeve rod, a side plate is fixedly connected to the center of one side wall of the sleeve rod, and wire holes are formed in the centers of the rear side walls of the sleeve rod and the side plate respectively. According to the utility model, the guide chute structure is arranged, so that before use, the guide chute structure can extend into the joint cavity, the subsequent installation of the positioning structure is facilitated, the installation is convenient, and the damage to the soft tissue of a patient can be reduced.

A reverse shoulder system can include, for example, a glenoid baseplate comprising a longitudinal axis, the glenoid baseplate further including a stem and a central channel within a sidewall of the stem. The stem can include a longitudinal axis. The longitudinal axis of the glenoid baseplate can be angled with respect to the longitudinal axis of the stem, wherein the longitudinal axis of the glenoid baseplate is not perpendicular with respect to the longitudinal axis of the stem. Other components including a glenosphere, tools, and methods of use are also disclosed.