A prosthetic knee (10) for replacing the knee of a patient including: (a) a femoral component (12) being coupable to a resected distal end of a femur of patient (b) a tibial component (14) being couplable to a resected proximal end of a tibia of the patient and (c) an insert (16), wherein the femoral component and the tibial component articulate by way of the insert arrangable therebetween, and a curved articular surface (76) of the insert is adapted to pivot with respect to a corresponding curved articular surface (56) of the tibial component.
