Patent ID: 8317869

Claim:
A component comprising: a femoral component of a knee prosthesis comprising: a bone-facing surface; an articulation surface, wherein the articulation surface has a curvature that is configured to mate with a mating articulation surface selected from at least one of a tibial surface, a patellar surface, a tibial component or a patellar component; an anterior end of the articulation surface; a posterior end of the articulation surface; and a claw extending (1) from an abrupt transition in a radius of the curvature, wherein the abrupt transition in the radius occurs in an anterior-posterior plane of at least one of the anterior most distal end of the articulation surface or the posterior most distal end of the articulation surface and (2) from an abrupt transition in a radius of the bone-facing surface, wherein the claw (1) is not configured to mate with the mating articulation surface, and (2) is configured to dig into tissue of a patient.