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在体内三维动力学比较正常的膝盖在曲和延伸活动之间
Kenichi Kono1,2, Takaharu Yamazaki3, Shuji Taketomi1
1Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
概括
膝盖的正常运动在曲和伸展之间有所不同,特别是在运动的开始和结束时. 了解这些体内膝盖动力学对于评估膝盖功能至关重要.
科学领域:
- 整形外科 整形外科 整形外科
- 生物力学 生物力学
- 膝关节联合研究 膝关节联合研究
背景情况:
- 在整个运动范围内的正常膝盖动力学并未得到充分理解.
- 这项研究研究了曲和伸展活动期间的活体膝盖运动.
研究的目的:
- 为了澄清正常膝盖在连续曲和延伸过程中的体内动力学.
- 为了比较曲和延伸之间的膝盖运动差异,直到高曲角度.
主要方法:
- 在10名志愿者的20个膝盖上使用光学和2D/3D注册技术.
- 评估股旋转和转移相对于骨在坐运动期间.
- 在整个运动范围内的各种曲角度评估动力学.
主要成果:
- 腿部外侧旋转在早期 (10°-40°) 和高 (120°-130°) 屈曲角度的屈曲和延伸之间有显著差异.
- 在延伸过程中,中侧大腿体表现出更大的后部位置,而不是从10°-60°的曲.
- 在延伸过程中,侧侧大腿骨在延伸过程中比在130°曲过程中曲时显著更为后部.
结论:
- 在活体中,延伸活动中的膝盖动力学与正常膝盖的曲活动不同.
- 在早期和高水平的膝盖屈曲方面都有显著的差异.
- 这些发现为了解正常的膝盖生物力学提供了必要的数据.
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