用有限元素方法对莱斯弗兰克损伤的弹性固定进行生物机械分析
1The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China.
Scientific reports
|July 21, 2025
概括
弹性固定通过优化预拉伸有效地治疗Lisfranc损伤. 70N的预应力水平提供了与正常带相比的生物机械稳定性,指导手术治疗.
科学领域:
- 整形外科手术 整形外科手术
- 生物力学 生物力学
- 计算建模计算建模
背景情况:
- 利斯弗朗克伤害是一种复杂的中脚创伤,需要有效的治疗.
- 弹性固定是一种有前途的技术,可以保护脚的生物力学.
- 在Lisfranc损伤中,弹性固定的最佳预张力还没有得到很好的定义.
研究的目的:
- 通过使用3D有限元素分析 (FEA) 在不同弹性固定预张水平下研究利斯弗朗克关节的生物力学.
- 为了确定弹性固定的最佳预拉伸,以匹配完整的带的稳定性.
- 为临床应用弹性固定在Lisfranc伤害管理中提供理论支持.
主要方法:
- 三维 (3D) 有限元素分析 (FEA) 用于建模Lisfranc关节.
- 模拟是在不同的预压固定状态下进行的.
- 分析包括应力分布,·米塞斯应力和关节位移.
主要成果:
- 不同的预张力水平显著影响了Lisfranc关节的生物力学.
- 增加的预张导致了更大的关节空间位移,并增加了骨和软骨的压力.
- 70N的压力证明了与完整的脚模型相当的生物机械稳定性.
结论:
- 弹性固定可以有效地控制受伤的Lisfranc关节中的异常运动.
- 为了达到所需的生物力学稳定性,最优的预拉力是至关重要的.
- 70N的预张力代表了在Lisfranc损伤中弹性固定的有效水平.
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