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反向肩膀关节整形设计对deltoid和旋转手套功能在绑架中的影响

Marcus G Pandy¹, Kaiwen Yang², Shanyuanye Guan²

¹Department of Mechanical Engineering, University of Melbourne, Parkville, VIC, Australia; Foundation for Orthopaedic Research and Education (FORE), Tampa, FL, USA.

Journal of shoulder and elbow surgery

|December 21, 2025

概括

反向全肩关节整形 (rTSA) 设计影响肩部肌肉功能. 在绑架过程中,保持脊椎下部和下部是补偿在rTSA的三角形缺陷的关键.

科学领域:

整形外科手术整形外科手术
生物力学生物力学
肌肉骨系统的建模

背景情况:

反向全肩关节整形术 (rTSA) 设计已经演变为解决早期代的并发症.
不同的RTSA设计对肩膀肌肉功能的影响仍然不完全理解.

研究的目的:

为了比较deltoid和旋转袖口肌肉功能在本地肩膀绑架期间与三个不同的RTSA设计相比.
调查侧面光层-中侧膀 (LG/MH),中侧光层-中侧膀 (MG/MH) 和中侧光层-侧侧膀 (MG/LH) 配置的生物力学影响.

主要方法:

开发了本地肩膀的特定肌肉骨模型.
利用双平面光学来捕捉绑架期间的肩骨动力学.
采用前进动力学模拟与优化来确定肌肉力量和评估RTSA设计影响.

主要成果:

所有rTSA设计都改变了三角形肌的功能,与本地肩膀 (>70%) 相比,其对终端绑架的贡献 (9-38%) 减少了.
在所有测试的RTSA设计中,脊椎下部和肩下部补偿了三角形缺陷,在终端绑架中提供高达80%的升起扭矩.
侧面化膜层增加了脊椎下部和下部的压力和膜层的压力.

结论:

在RTSA中,保护脊椎下和下是非常重要的,以减轻在晚期绑架期间的状体扭矩缺陷.
侧面化膜层增强旋转手套肌肉的参与,但也增加了膜层的压力.
侧面化手臂部件并没有显著改变deltoid或旋转手腕肌肉功能.

关键词:

计算机建模计算机建模证据水平:基础科学研究研究旋转中心的旋转中心.联合反应力的反应力.模拟建模的模型.这一时刻的手臂.rTSASA 是一个反向肩膀关节整形手术

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