Three-compartment knee prosthesis

1. According to the national knee database established by 1260 volunteers measured in 7 hospitals; 2. New gradual radius design to avoid instability in the middle part of ground buckling caused by sudden change of radius; 3. Anatomic tibial plateau design to increase the coverage of the osteotomy surface of the tibia, so that the pressure is evenly distributed in the proximal tibia; 4. Anti-rotating island design of tibial platform reduces fretting between the liner and the tibial tray and reduces wear on the back of the liner.