A family of femoral components (20, 120, 220) comprising a plurality of nominal femoral component sizes, each of said family of femoral components adapted to articulate with a tibial articular surface, each of said family of femoral components comprising: medial and lateral condyles (26, 24, 126, 124, 226, 224) shaped to articulate with the tibial articular surface through a range of motion, in which full extension corresponds to medial and lateral distal-most points (32, 30, 132, 130, 232, 230) formed on said medial and lateral condyles, respectively, and 90-degrees flexion corresponds to medial and lateral posterior-most points (36, 34, 136, 134, 236, 234) on said medial and lateral condyles, respectively, said medial and lateral condyles defining medial and lateral J-curves (27M, 27L), respectively.
