结论：①在正常情况下股外侧肌腱内面与股骨外侧髁存在着接触，这可能是缓解髌骨外侧关节软骨面压力的正常接触；
Conclusions:There is a normal contact area between the inner surface of lateral femoral tendon and lateral femur condylar to reduce the contact pressure of the lateral surface of patella.
结论：髌骨外侧关节面软骨下骨骨质最为坚固。
Conclusion: The optimum level of patella of the retropatellar articular surface is lateral facet.
目的：探讨髌骨半脱位致髌骨外侧软骨面压力过高的形态学因素。
Objective: to study the morphological factor in the excessive lateral pressure syndrome caused by subluxation of patella.
髌骨后部关节面重新处理，用骨水泥将新的塑料假体附着。
The rear of patella is resurfaced and new plastic component is attached with bone cement.
内侧纵嵴明显突起者占62％，此时其髌骨内侧部关节面与股骨关节面之间的间隙较大；
When the medial longitudinal crest raised obviously in cases (62%), the space between the medial articular facel of patella and femoral articular facel was bigger;
内侧纵嵴明显突起者占62％，此时其髌骨内侧部关节面与股骨关节面之间的间隙较大；
When the medial longitudinal crest raised obviously in cases (62%), the space between the medial articular facel of patella and femoral articular facel was bigger;
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