The knee prosthesis replaces the damaged cartilage with pieces of metal
(chrome, cobalt, titanium, etc.) of the same shape.
- One part is attached directly to the femur once the areas of damaged bone and cartilage are removed.
- One part is inserted in the tibia and reproduces the tibial plateau in its normal flat and horizontal shape.
- One polyethylene part is placed on top of the tibial implant in order to improve articular congruence**, reduce friction and therefore wear and tear of the prosthesis.
- One polyethylene part is sealed onto the patella to ensure greater mobility.
Depending on the damage to the various parts of the knee, the surgeon may decide to conduct a total knee replacement or a partial replacement of the cartilage.