Patent ID: 8128704

Claim:
A femoral trochlea prosthesis, comprising: an articulating surface including a patello-femoral groove; a plurality of nonarticulating surfaces, said plurality of nonarticulating surfaces including: a planar anterior nonarticulating surface defining a plane extending between and including a medial edge of the prosthesis and a lateral edge of the prosthesis; a first planar distal nonarticulating surface; and a second planar distal nonarticulating surface, said first planar distal nonarticulating surface noncoplanar with said second planar distal nonarticulating surface to form an intersection therebetween, said first distal nonarticulating surface extending from the medial edge of the prosthesis toward said intersection with said second distal nonarticulating surface, said second distal nonarticulating surface extending from the lateral edge of the prosthesis toward said intersection with said first distal nonarticulating surface, said intersection forming a distal apex, said distal apex following said patello-femoral groove.