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关节的带体有多强? 一个生物机械分析
Vera M Stetzelberger1,2, Haruki Nishimura2, Justin F M Hollenbeck2
1Department of Orthopaedic Surgery and Traumatology, HFR Cantonal Hospital, University of Fribourg, Fribourg, Switzerland.
Clinical orthopaedics and related research
|August 19, 2024
概括
带是较弱的带,女性性别,退化和股骨版本影响其强度. 这些发现对于了解接受关节保护手术的年轻患者的部稳定性至关重要.
科学领域:
- 整形外科手术 整形外科手术
- 生物机械分析分析
- 关节生物力学 关节生物力学
背景情况:
- 关节内关节疼痛是一个临床挑战,其中涉及带病变,特别是在接受关节保护手术的年轻患者中.
- 之前对带的生物力学研究存在局限性,包括不一致的发现和使用非人类模型.
- 在接受关节保护性关节手术的患者中,关于关节生物力学的研究缺乏.
研究的目的:
- 为了确定从关节脱手术中接受手术的新鲜冷的带体的生物力学特性 (负载到故障,抗拉强度,刚度,弹性模量).
- 为了确定与这些生物机械性质相关的患者特异性因素.
主要方法:
- 从经历关节脱的31名患者中采集了手术内带体样本,以保护关节.
- 生物力学测试使用材料测试机进行,以生成力-位移和应力-应变曲线.
- 多变量回归分析用于识别与带生物力学相关的人口,退行性和放射性因素.
主要成果:
- 带体表现出126N的最终负载到故障,拉伸强度为1MPa,刚度为24N/mm,弹性模量为7MPa.
- 女性的性别与更高的抗拉强度,度和弹性模量有关.
- 过度的股骨版本和骨损伤与减轻负载导致失败和硬有关.
结论:
- 带 (ligamentum teres) 是一个相对较弱的带,其生物力学特性受到性别,退化和股骨版本的影响.
- 这些发现为相关患者队列中的带带提供了基本的基线生物力学数据.
- 该研究质疑与其他带相比,带关节对部稳定性的整体贡献.
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