| 摘要 |
Femur parts of knee prostheses are shown with the invention which have a center part (2) and a condyle part (3) with contact surfaces (4a, 5a, 6a, 6b, 7b, 8a, 9a, 10a, 11a, 11b, 12a, 12b, 13b) with respect to a resectioned femur stump (1), with the center part (2) having guide surfaces (20) for a patella (19) and outer contact surfaces (4a, 5a) which are at an acute angle alpha<=90° relative to one another, while the condyle part (3) has running surfaces (27, 28) for the articulation movement and outer contact surfaces (6b, 7b) at an acute angle beta<=90° relative to one another. The center part (2) and the condyle part (3) can be pushed onto the femur stump separately from one another at push-on directions pivoted with respect to one another in order to allow a greater flexion, with the center line of the angle beta being pivoted through an angle of 15°<=gamma<=60° with respect to the center line of the angle alpha.
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