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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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使用基于计算机断层扫描的导航进行围骨切除术:术前规划和准确性评估.

Yutaka Inaba1, Taro Tezuka2, Masatoshi Oba2

  • 1Department of Orthopedic Surgery, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, Japan. yute0131@med.yokohama-cu.ac.jp.

International journal of computer assisted radiology and surgery
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概括

在旋转骨切除术 (RAO) 中,基于计算机断层扫描 (CT) 导航的新四个信任点方法显著提高了骨重定位的准确性. 这种技术减少了错误,特别是在上侧侧区域,提高了治疗关节发育不良的手术精度.

关键词:
基于计算机断层扫描的导航.部发育性发育不均症旋转性阿塞塔布勒骨质切除术 (Rotational Acetabular Osteotomy) 是一种切除术.

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科学领域:

  • 整形外科手术 整形外科手术
  • 医学成像医学成像
  • 手术导航手术导航手术导航

背景情况:

  • 部发育性形 (DDH) 需要精确的手术纠正.
  • 自2011年以来,基于计算机断层扫描 (CT) 的导航已经用于旋转骨切除术 (RAO).
  • 以前使用基于CT的导航进行RAO的方法在准确性方面存在局限性.

研究的目的:

  • 引入和评估一种新的四个可靠点方法,用于RAO.中基于CT的导航.
  • 与现有技术相比,提高骨重定向的准确性.
  • 为了评估新方法在实现计划的acetabular定位时的精度.

主要方法:

  • 一项涉及40个关节的比较研究,通过基于CT的导航进行RAO.
  • 两组被比较:使用以前的方法的20个关节和使用新的四个信托点方法的20个关节.
  • 进行了手术后的3DCT评估和测量骨部门角度 (ASA) 误差 (ΔASA),以评估准确性.

主要成果:

  • 与以前的方法相比,新的四个信任点方法在11:30至13:30区域产生了明显较小的绝对 ΔASA (p < 0.05).
  • 这种新方法显著减少了上侧囊的重定向错误.
  • 在两种方法之间,在1年后的哈里斯部评分中没有发现显著差异.

结论:

  • 新的四个信任点方法提高了RAO期间acetabular重定向的准确性,特别是在上侧侧面方面.
  • 这种技术导致较少的错误和较少的侧面acetabular覆盖的不足纠正.
  • 未来的研究将调查这种提高精度的长期临床影响.