Patent ID: 7833274

Claim:
A knee prosthesis, comprising: a femoral component formed from a non-polymeric base material and a polymer articulating material, said femoral component having at least one condyle portion formed from said non-polymeric base material, said at least one condyle portion having an upper surface, a wall at least partially defining a groove, and a lip extending from said wall into said groove, said lip and said wall of said at least one condyle portion defining an obtuse angle, said polymer articulating material received within said groove, said wall and said lip of said at least one condyle portion surrounding said polymer articulating material, wherein said lip facilitates retention of said polymer articulating material within said groove, said polymer articulating material defining an articulation surface configured for articulation against one of a proximal tibial prosthesis and a natural proximal tibia, said articulation surface of said polymer articulating material positioned substantially flush with said upper surface of said at least one condyle portion.