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一个外部的形骨对齐指南降低了位置变异.

Harsh Wadhwa1, Shay I Warren1, Kingsley Oladeji1

  • 1Department of Orthopaedic Surgery, Stanford University Medical Center, Stanford, California.

Surgical technology international
|December 1, 2023
PubMed
概括

一个手术内外对齐指南改善了关节部件定位的准确性,减少了关节整形术 (THA) 的手术时间. 这种工具提供了比单独的解剖学地标更高的精度,以获得更好的外科手术结果.

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

背景情况:

  • 精确的acetabular组件定位在全关节整形术 (THA) 中至关重要,但由于患者和手术因素,可能具有挑战性.
  • 依赖于解剖学标志的现有方法可能缺乏精度,可能会影响外科手术结果.

研究的目的:

  • 为了评估外科手术内外对齐指南在THA期间减少acetabular组件定位变异的有效性.
  • 为了比较使用外部指南与仅使用解剖学地标的精度和操作效率.

主要方法:

  • 在2014年至2018年期间,对409名接受初级THA治疗的成年患者进行了回顾性审查.
  • 在使用外部对齐指南的患者和仅使用解剖学地标的患者之间,比较acetabular组件的前转和倾斜,定位变异,手术时间和部不稳定性.
  • 采用多变量回归模型来调整混因素.

主要成果:

  • 与地标单独相比,外部对齐指南与明显更高的前倒转 (增加2.7°) 和倾斜 (增加3.2°) 相关.
  • 使用指南导致更小的反转前变异和14分钟的运行时间减少.
  • 两组之间没有观察到倾斜变异或部不稳定的显著差异.

结论:

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  • 一个手术内外部对齐指南可以提高在THA.期间的acetabular组件定位的精度.
  • 该指南与前转和倾斜的准确性提高,手术时间缩短,与仅依赖解剖学里程碑相比,手术结果可能更好.
  • 尽管存在回顾性设计的局限性,但对于一致的部件放置,可能更喜欢一个acetabular定位器.