A prosthesis for repairing a knee is made with an insert sandwiched between a femoral component and a tibial tray. The parts are shaped so that both the femoral component and the tibial tray will slidingly interface with the insert during motion of the knee. At regions where the femoral component interfaces...http://www.google.co.uk/patents/US7105027?utm_source=gb-gplus-sharePatent US7105027 - Self-aligning knee prosthesis
