使用三维有限元分析,比较Endobutton和螺丝固定之间的应力屏蔽在Laterjet过程中
Seyyid Serif Unsal1, Tugrul Yildirim2, Ali Tecirli3
1Department of Orthopedics and Traumatology, Ankara Atatürk Sanatorium Training and Research Hospital, Ankara, Turkey. seyyid.unsal@hotmail.com.
Journal of orthopaedic surgery and research
|March 17, 2026
概括
在Latarjet手术中,Endobutton固定与螺丝固定相比,在心肌移植中提供了更均的应力分布. 这可能会改善移植的愈合,并减少像骨质溶解这样的并发症.
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
- 医疗器械分析 医疗器械分析
背景情况:
- 拉达喷气手术解决了反复出现的前肩部不稳定.
- 内扣固定是一种可替代的螺丝固定,可用于心肌移植.
- 终端按可能提供更均的应力分布.
研究的目的:
- 比较Von Mises压力 (VMS) 在心肌移植中的分布.
- 评估螺丝固定与Endobutton固定之间的差异.
- 使用3D有限元 (FE) 分析.
主要方法:
- 构建了三维FE模型的状腺体和状腺体移植.
- 模拟的螺丝固定 (A组) 和Endobutton固定 (B组).模拟的螺丝固定 (A组) 和Endobutton固定 (B组).
- 使用Abaqus软件应用50N前部力并计算VMS.
主要成果:
- 螺丝固定导致局部应力度和异质移植应力.
- 内结节固定显示了更均的应力分布.
- 内扣组的VMS平均值较低,高压力区域较少.
结论:
- 末键固定导致比螺丝固定更均的应力分布.
- 这可能会减少移植骨质溶解,并增强骨质整合.
- 建议进行进一步的尸体和临床研究.
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