下肢内部负荷和对骨折愈合的潜在后果
Mark Heyland1, Dominik Deppe1,2, Marie Jacqueline Reisener1,3
1Julius Wolff Institute, Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin, Germany.
Frontiers in bioengineering and biotechnology
|October 30, 2023
概括
下肢骨负荷因膝盖角度而异,影响骨折愈合. 股骨和骨经历不同的力量,需要量身定制的固定,以获得更好的结果.
科学领域:
- 生物力学 生物力学
- 整形外科手术 整形外科手术
- 计算机建模 计算建模
背景情况:
- 机械负荷显著影响骨折愈合.
- 了解运动期间的内部骨载荷对于优化骨折修复策略至关重要.
研究的目的:
- 为了研究膝盖曲角度和前部对齐如何影响下肢长骨在行走过程中的负荷.
- 为了将这些内骨负荷与股骨和骨骨折的临床结果相关联.
主要方法:
- 使用肌肉骨在模拟,通过仪器膝关节植入物的体内数据进行验证.
- 在大腿骨和骨中分析了内部力量和时刻.
- 追溯评估了178个关节外大腿骨和骨骨折,将负载与修改后的骨辐射联盟量表 (mRUST) 评分相关联.
主要成果:
- 股骨压缩力大约是骨压缩力的一半.
- 额头平面曲时刻在股骨中比骨更高,在近距离增加.
- 膝关节的负荷受膝盖曲角度的影响,特别是在推开时;正面对齐的影响较小.
- 与骨骨折相比,大腿骨折的mRUST分数明显较低.
- 压缩,斜腰曲和正面曲显示与mRUST分数有很强的关联.
结论:
- 股骨和骨受到明显的负荷模式,与时刻一般减少远端.
- 膝盖屈曲角度是行走过程中阴负荷组件的关键决定因素.
- 骨折固定策略应考虑作用于股骨和骨的特定负载组件,而不仅仅是整体负载大小.
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