The present invention relates to a prosthetic leg for those having a femoral amputee, namely those having an above the knee stump, where certain movements can be difficult to perform. Known prosthetic knee joints that are weight-activated cannot substantially assist short-stumped individuals. The weight placed on the toe will typically cause disengagement of any stance mode there otherwise might be. The invention provides a solution to the problems addressed above. The present invention seeks to provide an improved mechanically operated prosthesis for a femoral amputee. The invention also provides an improved electrically-operated prosthesis for a transfemoral amputee.