侧柱延长后逐渐崩的脚形的被动变形评估:一个尸体生物机械研究
Jaeyoung Kim1, Jeffrey W Hoffman2, Scott J Ellis1
1Foot and Ankle Service, Hospital for Special Surgery, New York, NY.
The Journal of bone and joint surgery. American volume
|March 12, 2024
概括
在侧柱延长 (LCL) 后减少后脚变形,在渐进式倒塌脚变形 (PCFD) 中增加侧脚压力. 在LCL过程中优化形尺寸可能有助于保持形并防止过度的横向负载.
科学领域:
- 整形外科手术 整形外科手术
- 生物力学 生物力学
- 脚和脚解剖学 脚和脚解剖学
背景情况:
- 渐进式倒塌脚变形 (PCFD) 可以导致后脚变形减少.
- 侧柱延长 (LCL) 是用于纠正PCFD的手术程序.
- 在LCL后被动后脚变动和脚底压力之间的关系需要进一步客观的调查.
研究的目的:
- 量化LCL后最大被动后脚变动和立场中的脚部压力之间的相关性.
- 为了确定不同LCL形尺寸对后脚变动和脚部压力分布的影响.
主要方法:
- 十个尸体下肢标本使用机器人系统进行了测试,以模拟行走姿势.
- 评估了五种条件:完整的,模拟的PCFD和LCL与4,6和8毫米.
- 测量包括横至中前脚脚下部压力 (LM) 的比率和最大的被动后脚变动.
主要成果:
- 观察到被动下垂直和LM比率之间存在显著的负相关性.
- 增加LCL形大小与降低部和部形变形有很强的相关性.
- 较大的形尺寸导致LM比率显著增加,表明向侧面脚压转移.
结论:
- 在LCL之后后脚变形减少与侧面脚下压力增加有关.
- 在LCL中使用的形的大小直接影响后脚的反向和侧面压力分布.
- 在手术期间对后脚扭伤的评估,以及放射性评估,对于成功的LCL结局至关重要.
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