对尼斯结的生物力学研究,作为前十字带重建的替代固定方法
João Pedro Oliveira1, José Carlos Noronha2, António Completo3
1Faculty of Medicine, University of Coimbra, Coimbra, Portugal; Orthopaedic Department, Centro Hospitalar e Universitário de Coimbra, Unidade Local de Saúde de Coimbra, Coimbra, Portugal.
概括
前十字带重建的尼斯结固定方法显示了与Ultrabutton装置相似的移位和刚度. 然而,它的最终强度较低,尽管仍然足以用于早期患者康复.
科学领域:
- 整形外科手术 整形外科手术
- 生物医学工程 生物医学工程
- 运动医学 运动医学
背景情况:
- 全内部前十字带重建技术需要强大的移植固定装置.
- 固定装置的关节内通道存在技术挑战,可能导致碎片阻塞.
- 尼斯结技术提供了一个潜在的解决方案,在移植过渡后绑定一个按.
研究的目的:
- 为了评估一个尼斯结的生物力学性能,绑在一个按上,用于前交叉带移植固定.
- 为了比较尼斯结的生物力学特性与现有的皮质固定装置.
主要方法:
- 一项受控的实验室研究使用了两种经过验证的皮质固定装置:Endobutton (固定循环) 和Ultrabutton (可调节循环).
- 设备经过了循环负荷 (50-250 N 1000 个循环) 的预先调节.
- 包括延长,最终强度和刚度在内的生物力学性能通过50mm/min的拉到失效测试.
主要成果:
- 在尼斯结和Endobutton之间观察到最终强度和位移的显著差异 (p <0.05).
- 在尼斯结和Ultrabutton之间没有发现移位和刚度的显著差异.
- 与尼斯节点相比,Ultrabutton的最终故障负载明显更高 (p < 0.05).
结论:
- 尼斯结的固定方法表现出类似于Ultrabutton的移位和刚性.
- 虽然它的最终强度 (838 ± 28 N) 比测试的设备低,但在早期的ACL康复中,它超过了生理力.
- 尼斯结是前十字带移植固定的可行选择,特别是考虑到早期康复需求.
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