Porous unicondylar knee
AssigneeZimmer Technology, Inc.
InventorRobert Hodorek
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Abstract
A unicondylar femoral component for use in a partial knee arthroplasty. A femoral component of the present invention comprises a post and a flange having a pre-determined angle there between whereby a clamping force is placed on a patient's distal femur to hold the implant in place. The implant further comprises a porous layer on its bone contacting surface. In an alternative embodiment the femoral component is attached to the distal femur at least two threaded fasteners.
Claims6
The femoral component of a unicondylar endoprosthetic knee which lacks an anterior flange, wherein said femoral component is attached to the distal femur during a partial knee arthroplasty, the femoral component comprising:
- a convex arcuated articulating surface having a desired shape suitable for unicondylar femoral component;
- a bone contacting surface disposed opposite the articulating surface, wherein the contacting surface comprises a post extending from the bone contacting surface;
- and
- a flange disposed on an interior end of the femoral component, said post being inclined toward said flange such that an angle of about 5 degrees is formed between the flange and the post;
- wherein interference between said flange, said post and the femur generates a clamping force securing the femoral component to the distal femur.
Dependencies are inferred from the claim text.