System for designing a knee-joint endoprosthesis

摘要

System for designing a knee-joint endoprosthesis with articulation elements (11, 12) which can be secured at the lower end of the femur and which have a convexly curved articular bearing surface, with bearing elements (14, 15; 34) which can be secured at the upper end of the tibia 13 and which have a plane or optionally concave bearing surface (16, 17), and with a meniscus (18, 19) arranged movably between each of the femoral articulation elements (11, 12) and the tibial bearing elements (14, 15; 34), said menisci having slide surfaces (20, 21 and 22, 23) which are formed respectively on the upper side and the lower side and which are designed with a curvature complementing the associated articular bearing surface of the femoral articulation element (11 and 12) and the associated bearing surface of the tibial bearing element (14 or 15 or 34). The system includes tibial test bearing elements (29) with test meniscus (30), at least one bone-anchoring spike (31) being provided on the underside of the test bearing element (29). <IMAGE>