According to one example, a femoral prosthesis system is provided that has a plurality of sizing options using two families of femoral prostheses is disclosed. The second family of femoral prostheses can have a predetermined increase in femoral posterior condylar offset relative to the first family of femoral prosthesis. In one example, the second family of femoral prostheses can have the predetermined increase in the femoral posterior condylar offset while maintaining substantially a same femoral medial-lateral condylar extent relative to a comparably sized one of the first family of femoral prostheses.
