Total Knee Prosthesis Tri CCC The Tri CCC Knee is an implant with a mobile bearing and a very high congruency that decreases wear and optimizes ligamentous balance. Moreover, in its Safety version, the mobile bearing is attached to the tibial tray. This reduces the risk of dislocation. The Tri CCC Knee is available in cemented or cementless versions, with the possibility to add a tibial stem. The Tri CCC Knee is a modern implant that answers to surgeon’s and patient’s needs.