PS prosthesis, with a single radius of curvature of 0-90 degrees, can ensure consistent tension of lateral collateral ligament during knee flexion and extension, reduce collateral ligament injury and increase stability of prosthesis. Patented laser engraving lacteal nail fixation interface design increases the contact area by 30%, thus effectively increasing the fixation strength of prosthesis bone cement.
The design of extending the condyle before femoral sudden arrest increases the slideway length of the patella, and the friendly interface of the patella effectively prevents patella dislocation, patella bounce and anterior knee pain.