| 摘要 |
A knee prosthesis system comprising a single-piece tibia plateau (2) with two sliding cavities (7) and a single-piece femur component with two condylar sliding surfaces wherein the distance and shape thereof are adapted to the tibial sliding cavities (7). As an alternative to the single-piece femur component, the system comprises a pair of unconnected femoral condylar cups (10). The shape of the sliding surfaces of said cups is adapted to the tibial sliding cavities (7). In order to adapt the relative position and distance thereof in relation to the sliding cavities, the system includes a positioning instrument which ensures that an adapted relative position of the condylar cups (10) is maintained. |
