Joint line convergence angle should be considered when constitutional alignment is predicted based on arithmetic hip-knee-ankle angle: a retrospective cross-sectional observational study.

IF 12.5 2区 医学 Q1 SURGERY International journal of surgery Pub Date : 2024-10-01 DOI:10.1097/JS9.0000000000002097
Yu-Hang Gao, Yu-Meng Qi, Pei-Hong Huang, Xing-Yu Zhao, Xin Qi
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Abstract

Few studies have illustrated the role of the joint line convergence angle (JLCA) in the correlation between the arithmetic hip-knee-ankle angle (aHKA) and mechanical hip-knee-ankle angle (mHKA). We aimed to determine this role and to evaluate the effect of the JLCA in predicting constitutional alignment using the aHKA. A total of 107 normal participants (214 knees) and 246 patients (477 knees) with osteoarthritis(OA) were retrospectively examined using long-leg radiographs. The formula was calculated geometrically on plain radiographs of the knee based on the relationships among the mHKA, aHKA, and JLCA, and the distribution of the JLCA between the groups was determined. The effect of the JLCA on the prediction of constitutional alignment using the aHKA were evaluated. The geometric formula was determined to be 'mHKA=180°+aHKA - JLCA', and was verified. The median (quartile 1, quartile 3) JLCA was 2.0° (1.0°, 3.5°) and 2.5° (1.0°, 4.5°) in the normal and OA groups, respectively. The JLCA affected the prediction of constitutional alignment based on the aHKA. It should be considered when constitutional alignment is predicted based on the aHKA in patients with high JLCA values.

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根据算术髋-膝-踝角度预测宪法排列时应考虑关节线会聚角:一项回顾性横断面观察研究。
很少有研究说明关节线会聚角(JLCA)在算术髋-膝-踝角度(aHKA)和机械髋-膝-踝角度(mHKA)之间的相关性中的作用。我们的目的是确定这一作用,并评估 JLCA 在使用 aHKA 预测宪法排列方面的效果。我们使用长腿X光片对107名正常人(214个膝关节)和246名骨关节炎(OA)患者(477个膝关节)进行了回顾性检查。根据 mHKA、aHKA 和 JLCA 之间的关系,在膝关节平片上计算出几何公式,并确定了 JLCA 在各组之间的分布情况。评估了 JLCA 对使用 aHKA 预测宪法排列的影响。几何公式确定为 "mHKA=180°+aHKA - JLCA",并进行了验证。正常组和 OA 组的 JLCA 中位数(四分位 1,四分位 3)分别为 2.0°(1.0°,3.5°)和 2.5°(1.0°,4.5°)。JLCA影响了基于aHKA的体位排列预测。在根据 aHKA 预测 JLCA 值较高的患者的体位排列时,应考虑到这一点。
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来源期刊
CiteScore
17.70
自引率
3.30%
发文量
0
审稿时长
6-12 weeks
期刊介绍: The International Journal of Surgery (IJS) has a broad scope, encompassing all surgical specialties. Its primary objective is to facilitate the exchange of crucial ideas and lines of thought between and across these specialties.By doing so, the journal aims to counter the growing trend of increasing sub-specialization, which can result in "tunnel-vision" and the isolation of significant surgical advancements within specific specialties.
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