组合版本对三种不同类型的植入物的无冲击旋转运动范围的影响,用于逆肩关节整形术
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Reverse Total Shoulder Arthroplasty
Published on: July 5, 2011
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Midhat Patel1, Charles J Cogan2, Jose A Rodriguez2
1University of Arizona College of Medicine, Phoenix, AZ, USA.
JSES international
|January 19, 2026
概括
组合组件版本大于30°倒转,在逆向全肩关节整形术 (rTSA) 中减少无冲击的运动范围 (ROM). 像MG-LH和LG-MH这样的侧面设计增加了总的ROM,影响了撞击位置.
科学领域:
- 整形外科手术 整形外科手术
- 生物机械工程 生物机械工程
- 医疗器械设计 医疗器械设计
背景情况:
- 反向全肩关节整形术 (rTSA) 的结果可能会受到部件位置的影响.
- 在RTSA中,部和状元件版本对无冲击运动范围 (ROM) 的综合影响仍然未得到量化.
研究的目的:
- 在三种不同的RTSA设计中调查部和状腺组件组合版本对ROM的影响.
- 确定不同组件版本如何影响无冲击的ROM,并确定常见的冲击位置.
主要方法:
- 在9名患有后侧腺骨损失的患者中,对3个rTSA设计 (中侧腺-中侧椎,MG-LH,LG-MH) 进行虚拟模板设计.
- 模拟的膜膜ROM具有多种膜 (10°至-20°) 和膜 (0°至-40°) 组件版本.
- 分析撞击位置使用头皮接触网和统计建模 (线性混合效应,奇方测试).
主要成果:
- 总ROM随着组合组件回转率 (>30°) 的增加而减少.
- 外部旋转 (ER) ROM随着回转增加到30°,而内部旋转 (IR) ROM则减少.
- 植入物类型显著影响了总ROM;MG-LH和LG-MH设计与中间状腺-中间腰椎相比,显示了ROM的增加.
- 腹腔版本影响了IR和ERROM,而状细胞版本主要影响了IRROM.
结论:
- 组合组件的倒转超过30°会对rTSA的总无冲击ROM产生负面影响.
- 侧面化的rtsa设计 (mg-lh, lg-mh) 通过优化旋转中心来增强总rom.
- 植入物设计会影响冲击位置,而LG-MH可能会减少头部的冲击.
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