Preoperative increased pronation angle of the first metatarsus associated with correction loss after hallux valgus surgery: A semi-weight-bearing computed tomography study

IF 1.9 3区医学 Q2 ORTHOPEDICS Foot and Ankle Surgery Pub Date : 2024-04-24 DOI:10.1016/j.fas.2024.04.010

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Abstract

Background

The effect of preoperative first metatarsal pronation on postoperative prognosis of hallux valgus (HV) surgery is under investigation. Utilizing semi-weight-bearing computed tomography, the preoperative pronation angle was assessed to quantify its impact on postoperative prognosis.

Methods

In a retrospective analysis of 31 feet, those with re-increased hallux valgus angle postoperatively were classified as the non-maintained group, and the remainder as the maintained group. Preoperative pronation angles were compared to establish a threshold. Subsequently, feet were re-classified into high or low-pronation categories. The relative risk of non-maintenance in high-pronation category was calculated.

Results

The non-maintained group exhibited a significantly higher preoperative pronation angle (p = 0.021), with a 28.4º threshold. The high-pronation category had a relative risk of 2.34 for non-maintenance.

Conclusions

Increased preoperative first metatarsal pronation angle is associated with correction loss after HV surgery. Utilizing sWBCT to measure the pronation angle provides valuable insights into postoperative prognosis.

Level of evidence

III

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术前第一跖骨前倾角度增大与外翻术后矫正损失有关：半负重计算机断层扫描研究

背景目前正在研究术前第一跖骨前伸对足外翻（HV）手术术后预后的影响。方法在对31只脚进行的回顾性分析中，将术后外翻角度再次增大的脚分为非维持组，其余脚分为维持组。比较术前的外翻角度以确定阈值。随后，双脚被重新划分为高前倾或低前倾类别。结果非保持组术前前旋角度明显更高（p = 0.021），阈值为 28.4º。结论术前第一跖骨前倾角增大与 HV 手术后矫正损失有关。利用 sWBCT 测量前屈角度可为术后预后提供有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Foot and Ankle Surgery ORTHOPEDICS-

CiteScore

4.60

自引率

16.00%

发文量

202

期刊介绍： Foot and Ankle Surgery is essential reading for everyone interested in the foot and ankle and its disorders. The approach is broad and includes all aspects of the subject from basic science to clinical management. Problems of both children and adults are included, as is trauma and chronic disease. Foot and Ankle Surgery is the official journal of European Foot and Ankle Society. The aims of this journal are to promote the art and science of ankle and foot surgery, to publish peer-reviewed research articles, to provide regular reviews by acknowledged experts on common problems, and to provide a forum for discussion with letters to the Editors. Reviews of books are also published. Papers are invited for possible publication in Foot and Ankle Surgery on the understanding that the material has not been published elsewhere or accepted for publication in another journal and does not infringe prior copyright.