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相关概念视频

Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...

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一个基于计算机断层扫描的混合现实导航系统会改变多少自由手的骨部件位置?

Justin Leal1, Alexander F Heimann2, Eric S Dilbone1

  • 1Department of Orthopaedic Surgery, Duke University, Durham, NC, USA.

Arthroplasty today
|April 1, 2025
PubMed
概括

一个基于计算机断层扫描的混合现实 (MR) 导航系统帮助外科医生在全关节整形手术中纠正关节部分的方向. 这种导航工具在约一半的案例中是为了实现计划的操作前倒和倾斜目标而需要的.

关键词:
在逆转前进行逆转.增强现实 (AR) 是一种增强现实.倾斜的倾向 倾斜的倾向混合现实 (MR) 是一种混合现实.整体关节整形手术 (THA)

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科学领域:

  • 整形外科手术 整形外科手术
  • 医疗技术 医疗技术 医学技术
  • 手术导航 手术导航

背景情况:

  • 整体关节整形术 (THA) 的目的是精确地放置关节部件.
  • 自由手的定位可能会导致偏离计划中的acetabular方向.
  • 混合现实 (MR) 导航系统在手术准确性方面提供了潜在的改进.

研究的目的:

  • 评估基于计算机断层扫描的MR导航系统在THA期间对acetabular组件方向的影响.
  • 为了比较MR引导定位与自由手定位的准确性.
  • 量化实现计划操作前倒转 (OA) 和倾斜 (OI) 所需的调整.

主要方法:

  • 79名使用MR导航系统接受THA治疗的患者的回顾性审查.
  • 医生们最初将骨杯放到手中,记录了它的方向.
  • 自由手和计划方向之间的差异决定了导航系统的影响和所需的调整.

主要成果:

  • 在手术前计划的OA平均为30.1°,而自由手OA平均为30.2° (P = .885),在54.4%的病例中需要平均6.8°的调整.
  • 在手术前计划的OI平均为40.8°,而自由手的OI平均为37.8° (P < .001),在43.0%的病例中需要平均5.7°的调整.
  • 在大约一半的患者中,MR导航系统在OA和OI中促进了至少5°的校正.

结论:

  • 在实现患者特异性定向目标时,自由手的acetabular组件定位是可变的.
  • 评估的MR导航系统帮助外科医生纠正骨部件的方向.
  • 该系统在很大一部分THA程序中实现计划的操作前倒置和倾向方面证明是有益的.