1. A knee prosthesis comprising: a femoral component for replacing at least a portion of a distal end of a femur, the femoral component having a femoral articular surface extending in an anteroposterior direction; and a tibial component for replacing at least a portion of a proximal end of a tibia, the tibial component having a tibial articular surface extending in an anteroposterior direction, a posterior portion of the articular surface further including an articulation feature.