乳头肌肉缩对旋转手腕组织的生物力学影响:一项有限元素研究
Haiyan Wang1, Lihua Chen2, Guangming Xu3
1Department of Famous Traditional Chinese Medicine Hall, Shenzhen Bao'an Chinese Medicine Hospital, Shenzhen, Guangdong, China.
Scientific reports
|July 30, 2024
概括
端状肌肉缩显著增加了在肩膀绑架期间旋转手套组织的压力. 保持状肌肉体积对于肩关节的稳定性和机械平衡至关重要.
科学领域:
- 生物力学 生物力学
- 整形外科手术 整形外科手术
- 肌肉骨研究 研究
背景情况:
- delt 肌肉和旋转手套是肩膀关节稳定的关键.
- 端状肌肉缩会破坏肩膀机制,并改变旋转器袖口的加载模式.
- 状肌肉体积损失对旋转手腕应力的影响尚不清楚.
研究的目的:
- 通过有限元分析分析,分析旋转部组织由于状肌肉缩的机械变化.
- 为了量化旋转手臂组织的增加压力,具有不同程度的状肌肉缩.
主要方法:
- 开发了有限元肩膀模型,模拟了100% (控制),80%和50%的骨髓肌肉体积.
- 在所有模型中应用相同的外部负荷来模拟腺关节绑架.
- 分析并记录了旋转手臂组织内的应力分布,以不同的拉动角度.
主要成果:
- 在所有模型中,旋转袖口组织的应力随着绑架角度的增加,特别是在脊柱上.
- 在90°移动时,与对照人群相比,上的应力增加了58% (80%的骨) 和118% (50%的骨).
- 肩下压力比对照组增加了59% (50%的体) 和25%比80%的体组. 脊椎和小也显示出高压力.
结论:
- 端状肌肉缩改变了膜关节绑架机制.
- 旋转手腕组织应激的显著增加发生在状体缩.
- 正常的deltoid肌肉体积对于保持旋转手套的机械平衡至关重要.
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