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Knee Prosthesis with Identical Patellar Elements of Different Thickness and Top Surface Diameter

A component, patella technology, used in the field of implantable orthopaedic prostheses

Active Publication Date: 2016-08-24
DEPUY PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This size dependence can present challenges in the surgical correction of patellofemoral gap imbalances

Method used

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  • Knee Prosthesis with Identical Patellar Elements of Different Thickness and Top Surface Diameter
  • Knee Prosthesis with Identical Patellar Elements of Different Thickness and Top Surface Diameter
  • Knee Prosthesis with Identical Patellar Elements of Different Thickness and Top Surface Diameter

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Embodiment Construction

[0033] While the inventive concept is susceptible to various modifications and alternative forms, specific exemplary embodiments thereof have been shown by way of example in the drawings and will be described in detail herein. It should be understood, however, that there is no intent to limit inventive concepts to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

[0034] Terms denoting anatomical references, such as anterior, posterior, medial, lateral, superior, inferior, etc., are used in this disclosure with respect to the orthopedic implants described herein and the patient's natural anatomy. These terms have well-known meanings in both anatomy and plastic surgery. Such anatomical reference terms used in the specification and claims are intended to be accorded their commonly understood meanings unless otherwise...

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Abstract

The present invention discloses an orthopedic implant assembly comprising a plurality of dome-shaped patella elements of equal size. Each of the same-sized dome-shaped patella elements can have a variety of thicknesses and / or top surface diameters.

Description

technical field [0001] The present disclosure relates generally to implantable orthopedic prostheses, and more particularly to implantable orthopedic prostheses having dome-shaped patella elements of the same size that vary in thickness and top surface diameter. Background technique [0002] During the patient's lifetime, the patient may require joint replacement surgery due to, for example, disease or trauma. Joint replacement surgery may involve the use of a prosthesis that is implanted in one or more of the patient's bones. In patella replacement surgery, an orthopedic prosthesis is implanted in the patient's patella. Specifically, the prosthetic patella component is secured to the patient's native patella such that its posterior surface articulates with the femoral component in extension and flexion of the knee. [0003] A conventional dome-shaped patella component embodies a dome-shaped polymer bearing with a spherical dome profile. Therefore, changing the thickness ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/38
CPCA61F2/3877A61F2002/30616
Inventor A·P·赖特W·P·巴雷特D·S·巴雷特
Owner DEPUY PROD INC
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