线 anchor类型,眼孔配置和加载条件对线故障的影响:一个体外研究研究
Obinna P Fidelis1, Pierre-Yves Mulon2, David E Anderson2
1Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, Tennessee, USA.
Veterinary surgery : VS
|February 24, 2025
概括
针眼圈的设计显著影响了针的强度,而抬高的眼圈会因磨损而导致更多的针中部故障. 嵌入式眼圈导致较少的故障,表明更好的接保护.
科学领域:
- 骨科生物力学 骨科生物力学
- 生物材料科学是生物材料的科学.
- 手术器械工程是指手术器械的工程.
背景情况:
- 接对于骨科手术中软组织的重新连接至关重要.
- 接的设计,特别是眼孔的配置,可能会影响接的完整性和最终的故障负载.
- 了解这些影响对于改善手术结果和设备寿命至关重要.
研究的目的:
- 为了评估固眼孔类型 (抬高或嵌入) 和负载条件对断负载和模式的影响.
- 为了比较不同临床接的性能与标准化眼螺杆螺杆参考.
- 为了阐明设计和接强度之间的生物力学关系.
主要方法:
- 一项受控的实验室研究使用了四种独特的-合组合 (n=40) 和眼栓螺丝参考 (n=30).
- 样品经过静态负荷到故障或循环负荷 (1000 个周期,0-60 N),然后进行故障测试.
- 强度通过将性能与匹配的眼螺丝螺丝进行比较来量化.
主要成果:
- 循环负载没有显著影响最大故障负载 (Fmax).
- 与Arthrex,IMEX和Jorvet相比,阿尼卡的Fmax显著降低 (p < .015).与此相比,阿尼卡的Fmax显著降低 (p < .015).
- 带有升起眼圈的在中间部分 (14/20) 出现了更高的失效率,这表明磨损或切割,而嵌入眼圈导致结失败 (20/20).
结论:
- 接眼的几何形状和表面特征极大地影响了接的强度.
- 升起的眼圈与眼圈接口的痕损伤增加有关,可能会损害结构完整性.
- 嵌入式眼圈设计可以提供优越的接保护,从而实现更强大的固定.
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