在基于 CT 导航的全髋关节置换术中,骨盆跟踪器的刚性固定对于精确放置髋臼杯至关重要。

IF 1.1 4区 医学 Q4 ENGINEERING, BIOMEDICAL
Makoto Hamawaki, Hidetoshi Hamada, Keisuke Uemura, Kazuma Takashima, Hirokazu Mae, Nobuo Nakamura, Nobuhiko Sugano
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引用次数: 0

摘要

关于术中骨盆跟踪器相对于骨盆的位移对基于计算机断层扫描(CT)的导航(CTN)中髋臼杯定位精度的影响,或检测与 CTN 精确度相关因素的多变量分析,目前还缺乏研究。在此,我们提出以下问题:(1)骨盆跟踪器位移如何影响全髋关节置换术(THA)中髋臼杯定位的 CTN 准确性? (2)多变量分析中,哪些因素与 CTN 准确性相关?关于使用 CTN 进行的 446 例 THA 手术中的髋臼杯定位,我们评估了临床误差(定义为术后测量与术前计划之间的差异)和测量误差(定义为术后测量与术中测量之间的差异)。多变量回归分析检测了相关因素。术中跟踪器位移为
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Rigid fixation of pelvic tracker essential for accurate cup placement in CT-based navigation total hip arthroplasty.

Rigid fixation of pelvic tracker essential for accurate cup placement in CT-based navigation total hip arthroplasty.

Research is lacking on the effect of intraoperative pelvic tracker displacement relative to the pelvis on cup orientation accuracy in computed tomography (CT)-based navigation (CTN) or multivariable analysis to detect factors associated with CTN accuracy. Here, we asked: (1) how pelvic tracker displacement influences the CTN accuracy of cup orientation in total hip arthroplasty (THA)? and (2) what factors are associated with CTN accuracy on multivariable analysis? Regarding cup orientation in 446 THA procedures using CTN, we evaluated clinical error defined as the difference between postoperative measurement and preoperative planning and measurement error defined as the difference between postoperative and intraoperative measurements. Multivariable regression analyses detected the associated factors. Subjects with an intraoperative tracker displacement of < 2 mm were classified in the verified group. Mean absolute clinical and measurement errors were < 1.5° in the verified group, whereas the measurement error of 2.6° for cup inclination and 1.3° for anteversion was larger in the non-verified versus verified group. Tracker displacement and screw fixation were associated with larger clinical errors, while tracker displacement and surgeon inexperience were associated with larger measurement errors. Clinical and measurement accuracies were high for CTN cup placement with rigid pelvic tracker fixation.

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来源期刊
Journal of Artificial Organs
Journal of Artificial Organs 医学-工程:生物医学
CiteScore
2.80
自引率
15.40%
发文量
68
审稿时长
6-12 weeks
期刊介绍: The aim of the Journal of Artificial Organs is to introduce to colleagues worldwide a broad spectrum of important new achievements in the field of artificial organs, ranging from fundamental research to clinical applications. The scope of the Journal of Artificial Organs encompasses but is not restricted to blood purification, cardiovascular intervention, biomaterials, and artificial metabolic organs. Additionally, the journal will cover technical and industrial innovations. Membership in the Japanese Society for Artificial Organs is not a prerequisite for submission.
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