两个不同的高强度的结节持有能力 - - 一个生物机械分析分析
Kenneth P van Knegsel1,2,3, Ivan Zderic1, Philipp Kastner1,4
1AO Research Institute Davos, Davos, Switzerland.
International orthopaedics
|November 28, 2023
概括
在潮湿条件下,与FiberWire (FW) 相比,新型的DynaCord (DC) 需要更少的抛出来安全地进行手术结合. 这一发现表明DC可以减少手术时间和异物体体积,而不会牺牲生物力学强度.
科学领域:
- 生物材料科学 生物材料科学
- 手术技术 手术技术
- 整形外科手术 整形外科手术
背景情况:
- 传统的手术结通常需要七次投才能获得足够的安全性.
- 新型高强度可以减少投次数而不会损害稳定性.
- 在各种条件下调查结安全性对于外科实践至关重要.
研究的目的:
- 为了评估投数和环境条件对两个高强度线:FiberWire (FW) 和DynaCord (DC) 节点安全性的影响.
- 为了比较FW和DC的生物力学能力.
- 为了确定在不同条件下确保节点安全所需的最低抛数.
主要方法:
- 两个高强度,FW和DC,用于创建手术结.
- 样本在干燥,湿 (盐水) 和脂肪湿 (脂肪) 条件下进行了测试.
- 单调的拉力坡道加载到故障被应用来评估滑动和最终的力.
主要成果:
- 对于湿 (4次) 和脂肪湿 (5次) 条件下的节点安全性,DynaCord (DC) 需要比FiberWire (FW) 更少的投,而FW的一致要求是7次投.
- 在湿条件下,FW在使用七次投时显示出明显更大的滑动 (6.5 ± 2.2 毫米) 比DC (3.5 ± 0.4 毫米).
- 所有样本的故障都是通过破裂发生的,最小抛射数量根据接类型和状况而异.
结论:
- 与FiberWire (FW) 相比,DynaCord (DC) 线在现实的湿和脂肪湿条件下具有较少的抛,具有卓越的结节安全性.
- 电流的性能表明,它有可能减少异物体体积和手术时间.
- 这些发现表明,新型直流保持生物力学能力,同时提供潜在的外科优势.
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