Adjustable position trial component with drill guide

A technology of components and sliding parts, applied in the field of experimental implants, can solve the problem of non-adjustable lateral-middle position of femoral components

Active Publication Date: 2018-03-06
SMITH & NEPHEW INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the final lateral-medial position of the femoral component is not adjustable even though the assessment may point to the fact that the femoral component is not properly aligned with the tibial implant

Method used

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  • Adjustable position trial component with drill guide
  • Adjustable position trial component with drill guide
  • Adjustable position trial component with drill guide

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Embodiment Construction

[0015] For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the embodiments illustrated in the drawings, and specific language will be used to describe the same. It will however be understood that no limitation of the scope of the invention is thereby intended. Any variations and other modifications of the described embodiments, and any other applications of the principles of the invention as described herein are contemplated as would normally occur to those skilled in the art to which the invention pertains.

[0016] figure 1 The final femoral component 80 according to one embodiment is shown implanted on a prepared femur 90 . The illustrated femoral component 80 is provided as a single ankle component configured to replace a diseased, degenerative, or otherwise damaged femoral condyle, although other forms are contemplated. Femoral component 80 includes a body portion 81 having an articular side 82 configured to m...

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Abstract

An exemplary trial component is configured to be attached to a resected bone having a resection surface, and includes a body portion and a sliding fastening mechanism movably coupled to the body portion. The body portion has an articular surface, a bone-facing surface, and at least one drill guide extending through the articular surface and the bone-facing surface. The sliding fastening mechanismincludes at least one post extending beyond the bone-facing surface, and the post is operable to engage the resection surface to retain the position of the sliding fastening mechanism relative to thebone. When attached to the bone, the trial component is structured to selectively retain the position of the body portion relative to the bone, and to selectively permit adjustment of the position ofthe body portion relative to the bone.

Description

technical field [0001] The present disclosure relates generally to trial implants having adjustable positions, and more particularly, but not exclusively, to such trial implants that facilitate preparation of bone for implantation of the final implant . Background technique [0002] Unicompartmental knee arthroplasty (UKA) is a surgical treatment option that can be used to address arthritic damage to a single compartment of the knee while preserving the native cruciate ligament. An important aspect for implant longevity when performing UKA is proper lateral / medial positioning of the femoral component so that it sits along the center of the tibial component as it articulates, thereby reducing wear. Furthermore, improperly positioned members may interfere with anteromedially located soft tissue structures, which may result in discomfort or injury to the patient. [0003] In certain conventional UKA procedures, the lateral / medial positioning of the femoral component on the fe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/46
CPCA61F2/4657A61F2/468A61F2/4684A61B17/1764A61B17/155A61F2/3859
Inventor C.卡尔C.斯高D.休斯J.佐敦
Owner SMITH & NEPHEW INC
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