Claims
- 1. A femoral implant device for use in patello-femoral joint arthroplasty, comprising.
a medial bearing surface; an opposite lateral bearing surface; a channel disposed between said medial bearing surface and said lateral bearing surface, the channel extending generally transverse to the medial-lateral direction of the device when the device is engaged to a femur, wherein said lateral bearing surface, said medial bearing surface and said channel form an anterior surface of the implant device; and a posterior surface opposite said anterior surface configured for engaging the femur, the posterior surface having a maximum slope in medial-lateral cross-section of less than about 42 degrees.
- 2. The femoral implant device of claim 1 wherein said posterior surface is configured substantially similar to said anterior surface.
- 3. The femoral implant device of claim 1 wherein said medial bearing surface forms a convex curved surface in the medial-lateral direction.
- 4. The femoral implant device of claim 1 wherein said medial bearing surface forms a convex curved surface in the inferior-superior direction.
- 5. The femoral implant device of claim 1 wherein said medial bearing surface and bearing surface define different widths in the medial-lateral direction.
- 6. The femoral implant device of claim 5, wherein the width of said medial bearing surface is less than the width of said lateral bearing surface.
- 7. The femoral implant device of claim 1, wherein said posterior surface includes a plurality of substantially mutually parallel anchors projecting outwardly therefrom, each of said anchors configured for engagement within a prepared bore in the femur.
- 8. A femoral implant device for use in patello-femoral joint arthroplasty, comprising:
a medial bearing surface; an opposite lateral bearing surface, a channel disposed between said medial bearing surface and said lateral bearing surface, the channel extending generally transverse to the medial-lateral direction of the device when the device is engaged to a femur, wherein said, lateral bearing surface, said medial bearing surface and said channel form an anterior surface of the implant device; and a posterior surface opposite said anterior surface configured for engaging the femur and including a plurality of substantially mutually parallel anchors projecting outwardly therefrom, each of said anchors configured for engagement within a prepared bore in the femur.
- 9. The femoral implant device of claim 8 wherein said posterior surface is configured substantially similar to said anterior surface.
REFERENCE TO RELATED APPLICATION
[0001] This application claims priority to co-pending U.S. Provisional Application Ser. No. 60/310,527, entitled “Femoral Implant for Patello-Femoral Joint Arthroplasty and Associated Surgical Method”, filed on Aug. 7, 2001, in the name of the same inventors.
Provisional Applications (1)
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Number |
Date |
Country |
|
60310527 |
Aug 2001 |
US |