Patent ID: 7837737

Claim:
A femoral trial prosthesis kit comprising: at least a first and second femoral trial prosthesis, each femoral trial prosthesis including: a stem having a proximal end and a distal end; a stabilizer box integrally connected to the distal end of the stem; and an articular surface integrally connected to the stabilizer box, the articular surface including an internal surface having an anterior bone engaging surface, a distal bone engaging surface, and a posterior bone engaging surface, and an external curved surface including a distal curved surface having a curvature between a most distant anterior point and a most distant posterior point and a posterior curved surface, wherein a distance between at least a portion of the distal bone engaging and distal curved surfaces of the first femoral trial prosthesis is less than a distance between at least a portion of the distal bone engaging and distal curved surfaces of the second femoral trial prosthesis, and wherein distances between the posterior bone engaging surface and the posterior curved surface, the curvature of the distal curved surfaces and distances between proximal ends of the stems and the distal bone engaging surfaces of the articular surfaces of the first and second femoral trial prostheses are substantially constant.