L1 脊柱-骨盆(L1SP)角:评估髋关节手术中 PI-LL 错位的简化方法。

IF 1.3 4区 医学 Q3 ORTHOPEDICS
A Mounir Boudali, Yuan Chai, John E Farey, Jonathan Vigdorchik, William L Walter
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引用次数: 0

摘要

简介在评估矢状面上的脊柱骨盆对齐情况时,通常会考虑骨盆内陷-腰椎前凸(PI-LL)不匹配的问题。传统的错位测量方法是在脊柱骨盆侧位X光片上分别测量两个角度。本研究描述了一种简化的方法,通过评估 L1-脊柱角度(L1SP)来评估脊柱骨盆活动度和测量 PI-LL 错位。方法:2020 年 11 月至 2021 年 7 月期间,从连续接受全髋关节置换术的患者处获得 96 张立位侧位片。招募 3 名操作员在数字 X 光片上标注地标。应用了相关性分析和误差分析。使用类内相关系数(ICC)评估测量的可重复性:三个变量的相关系数分别为:PI 0.87、LL 0.94 和 L1SP 0.96。两组测量值之间的归一化均方根误差分别为:PI 9.96%,LL 5.97%,L1SP 4.41%。绝对误差分别为:PI 为 3.49° ± 4.63°,LL 为 3.23° ± 3.78°,传统 PI-LL 为 2.68° ± 3.19°,通过 L1SP 的 PI-LL 为 2.35° ± 2.88°。就可重复性而言,L1SP 的测量结果优于 PI 和 LL 的测量结果(ICC = 0.97,分别为 0.83 和 0.93):结论:简化的 L1SP 方法通过测量单个角度得出的测量结果与传统的 PI-LL 方法相似。使用 L1SP 方法提高了操作者之间的测量重复性。从临床实践的角度来看,这两种方法是等效的。在术前模板制作过程中,使用市面上的 PACS 软件,新方法很容易重复。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The L1 spino-pelvic (L1SP) angle: a simplified approach for the assessment of the PI-LL mismatch in hip surgery.

Introduction: Pelvic incidence - lumbar lordosis (PI-LL) mismatch is often considered when assessing spinopelvic alignment in the sagittal plane. The mismatch is conventionally obtained by measuring 2 separate angles on lateral spinopelvic radiographs. This study describes a simplified approach for assessing spinopelvic mobility and measuring the PI-LL mismatch through the evaluation of the L1-spinopelvis angle (L1SP).

Methods: 96 standing lateral radiographs were obtained from consecutive patients presenting for total hip arthroplasty between November 2020 and July 2021. 3 operators were recruited to annotate landmarks on digital radiographs. Correlation analysis and error analysis were applied. Measurement reproducibility was assessed using intraclass correlation coefficient (ICC).

Results: The correlation coefficients of the 3 variables were respectively 0.87 for PI, 0.94 for LL, and 0.96 for L1SP. The normalised root mean square error between the 2 measurement sets was 9.96% for PI, 5.97% for LL, and 4.41% for L1SP. The absolute error was 3.49° ± 4.63° for PI, 3.23° ± 3.78° for LL, 2.68° ± 3.19° for PI-LL conventional, and 2.35° ± 2.88° for PI-LL via L1SP, respectively. In terms of reproducibility, measurement of L1SP outperformed that of PI and LL (ICC = 0.97 versus 0.83 and 0.93, respectively).

Conclusion: The simplified L1SP method, through the measurement of a single angle, produced similar measurements to the conventional PI-LL method. The measurement repeatability between operators was improved using the L1SP method. From a clinical practice perspective, both methods are equivalent. The new method is readily reproducible using commercially available PACS software during preoperative templating.

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来源期刊
HIP International
HIP International 医学-整形外科
CiteScore
4.20
自引率
0.00%
发文量
70
审稿时长
2 months
期刊介绍: HIP International is the official journal of the European Hip Society. It is the only international, peer-reviewed, bi-monthly journal dedicated to diseases of the hip. HIP International considers contributions relating to hip surgery, traumatology of the hip, prosthetic surgery, biomechanics, and basic sciences relating to the hip. HIP International invites reviews from leading specialists with the aim of informing its readers of current evidence-based best practice. The journal also publishes supplements containing proceedings of symposia, special meetings or articles of special educational merit. HIP International is divided into six independent sections led by editors of the highest scientific merit. These sections are: • Biomaterials • Biomechanics • Conservative Hip Surgery • Paediatrics • Primary and Revision Hip Arthroplasty • Traumatology
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