Patent ID: 7819919
Filing Date: 2010-10-26
Classification: A61F

Abstract:
1. A unicompartmental knee prosthesis for implantation into a knee joint compartment between a femoral condyle and its corresponding tibial plateau, the prosthesis comprising: a body having a generally elliptical shape in plan, the body including a pair of opposed surfaces and a peripheral edge extending between the pair of opposed surfaces and having a first side, a second side opposite the first side, a first end, and a second end opposite the first end, the prosthesis configured to be translatable with respect to the tibial plateau during knee articulation, the body including at least one cusp protruding downwardly from one of the first and second ends for limiting translation of the prosthesis, the body having an exterior portion and an interior portion, wherein the exterior portion encapsulates the interior portion and the exterior portion is constructed from a higher modulus material than the interior portion.