Tibial prosthesis having a U-shaped intramedullary stem

摘要

A tibial prosthesis which interacts with a femoral prosthesis to provide a knee joint replacement is disclosed. The prosthesis comprises a tibial plateau platform provided with an intramedullary stem having a generally U-shaped cross section allowing for retention of the cruciate ligaments of the knee joint while still achieving adequate anchorage of the device to the proximal end of the tibia.