Patellar implant and knee prosthesis incorporating such an implant
First Claim
1. A patellar implant for total or partial prosthesis of the knee joint, the implant including an outer articular surface and an inner articular surface provided to cooperate respectively with an outer side and an inner side of a femoral trochlea or of a femoral prosthetic component, said outer articular surface and said inner articular surface being separated by a transition ridge, said outer articular surface being concave in a plane parallel to a sagittal plane of the knee joint and in a transverse plane, and wherein said ridge is continuously concavely curved facing said outer articular surface, as viewed from a front of the implant.
4 Assignments
0 Petitions
Accused Products
Abstract
A patellar implant for total or partial prosthesis of the knee joint incorporates an outer articular surface and an inner articular surface provided to cooperate respectively with an outer side and an inner side of a femoral trochlea or of a femoral prosthetic component. The inner and outer articular surfaces are separated by a transition ridge which is curved, as viewed from a front of the implant, so as to be concave facing the outer articular surface. The outer articular surface is concave in a plane parallel to a sagittal plane and in a transverse plane of the knee joint.
170 Citations
9 Claims
- 1. A patellar implant for total or partial prosthesis of the knee joint, the implant including an outer articular surface and an inner articular surface provided to cooperate respectively with an outer side and an inner side of a femoral trochlea or of a femoral prosthetic component, said outer articular surface and said inner articular surface being separated by a transition ridge, said outer articular surface being concave in a plane parallel to a sagittal plane of the knee joint and in a transverse plane, and wherein said ridge is continuously concavely curved facing said outer articular surface, as viewed from a front of the implant.
- 8. Total or partial knee prosthesis, including a patellar implant having an outer articular surface and an inner articular surface provided to cooperate respectively with an outer side and an inner side of a femoral trochlea or of a femoral prosthetic component, said outer articular surface and said inner articular surface being separated by a transition ridge, said outer articular surface being concave in a plane parallel to a sagittal plane of the knee joint and in a transverse plane, and wherein said ridge is continuously concavely curved facing said outer articular surface, as viewed from a front of the implant.
Specification