Modular knee prosthesis
First Claim
Patent Images
1. A tricompartmental femoral knee prosthesis, comprising:
- a medial distal posterior femoral component having a smooth articulating medial surface and a bone engaging medial surface oppositely disposed from the articulating medial surface;
a lateral distal posterior femoral component having a smooth articulating lateral surface and a bone engaging lateral surface oppositely disposed from the articulating lateral surface; and
a patellar-femoral component having a smooth articulating patellar-femoral surface and being connected to the medial distal posterior femoral component and the lateral distal posterior femoral component, wherein the patellar-femoral component, the medial distal posterior femoral component, and the lateral distal posterior femoral component are three separate components that connect together to form the tricompartmental femoral knee prosthesis.
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Abstract
A modular knee prosthetic system used to replace the natural knee and including two distal posterior femoral components and one patellar-femoral joint component. The components have a smooth outer condylar surface and an inner bone-engaging surface and are connectable to form either an unicompartmental or bicompartmental femoral knee prosthesis.
249 Citations
12 Claims
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1. A tricompartmental femoral knee prosthesis, comprising:
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a medial distal posterior femoral component having a smooth articulating medial surface and a bone engaging medial surface oppositely disposed from the articulating medial surface;
a lateral distal posterior femoral component having a smooth articulating lateral surface and a bone engaging lateral surface oppositely disposed from the articulating lateral surface; and
a patellar-femoral component having a smooth articulating patellar-femoral surface and being connected to the medial distal posterior femoral component and the lateral distal posterior femoral component, wherein the patellar-femoral component, the medial distal posterior femoral component, and the lateral distal posterior femoral component are three separate components that connect together to form the tricompartmental femoral knee prosthesis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 12)
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8. A femoral knee implant comprising:
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at least three separate components that include two medial distal posterior components and one patellar-femoral component;
all three components having a smooth outer condylar surface adapted to articulate with a tibial insert and an inner bone-engaging surface adapted to engage bone;
each medial distal posterior component includes a connector; and
the patellar-femoral component includes a connection mechanism adapted to engage and connect to each connector. - View Dependent Claims (9, 10, 11)
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Specification