Correlation Analysis between Leg-length Discrepancy and Lumbar Scoliosis Using Full-length Standing Radiographs.

IF 1 Q3 ORTHOPEDICS

Strategies in Trauma and Limb Reconstruction Pub Date : 2022-09-01 DOI:10.5005/jp-journals-10080-1566

Tomo Hamada, Hidenori Matsubara, Satoshi Kato, Toshifumi Hikichi, Kanu Shimokawa, Satoru Demura, Hiroyuki Tsuchiya

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引用次数: 3

Abstract

Aim: When a leg-length discrepancy (LLD) is severe enough, it can result in lumbar scoliosis and other postural defects. To our knowledge, no study has demonstrated associations between LLD and lumbar curvature using full-length standing radiographs of the lower limbs and lumbar spine. This study aimed to examine the correlations between LLD and lateral curvature of the lumbar spine using standing radiographs.

Materials and methods: Full-length standing radiographs of the lower limbs and spinal column of 113 participants (age range: 10-65 years) obtained between November 2006 and September 2019 were reviewed. Leg length was measured as the linear distance from the centre of the femoral head to the centre of the tibial plafond and converted to millimetres using a radiographic ruler captured in the images. Leg-length discrepancy was analysed as the absolute difference (mm) between the left and right leg lengths. Inequality was also evaluated as leg-length discrepancy ratio (LLDR), calculated as leg-length discrepancy/length of the unaffected (longer) leg × 100 (%). Lateral lumbar curvature was evaluated with the Cobb angle (°). The association between LLD or LLDR and lumbar Cobb angle was analysed by correlation analysis. Statistical analysis was performed by simple regression in SPSS.

Results: Both LLD and LLDR exhibited a robust and positive correlation with lumbar Cobb angle (γ = 0.53, γ = 0.62), as illustrated by the following regression equations: lumbar Cobb angle (°) = 0.316 × leg-length discrepancy (mm) + 2.83 and lumbar Cobb angle (°) = 2.19 × leg-length discrepancy ratio (%) + 3.0.

Conclusion: Using objective imaging data, we found that the lumbar Cobb angle tends to be >10° if the difference in leg lengths is >20 mm.

How to cite this article: Hamada T, Matsubara H, Kato S, et al. Correlation Analysis between Leg-length Discrepancy and Lumbar Scoliosis Using Full-length Standing Radiographs. Strategies Trauma Limb Reconstr 2022;17(3):144-147.

Abstract Image

查看原文本刊更多论文

用全长度站立X线片分析腿长差异与腰椎侧弯的相关性。

目的：当腿长差异（LLD）足够严重时，可能会导致腰椎侧弯和其他姿势缺陷。据我们所知，没有任何研究表明LLD与腰椎弯曲之间的关系，使用下肢和腰椎的全长站立X线片。本研究旨在通过立位X线片检查LLD与腰椎侧弯之间的相关性。材料和方法：回顾了2006年11月至2019年9月期间获得的113名参与者（年龄范围：10-65岁）的下肢和脊柱的全身立位X线照片。腿长测量为从股骨头中心到胫骨平台中心的线性距离，并使用图像中捕获的射线尺转换为毫米。腿长差异被分析为左腿和右腿长度之间的绝对差异（mm）。不等式也被评估为腿长差异率（LLDR），计算为腿长偏差/未受影响（较长）腿的长度×100（%）。用Cobb角（°）评估腰椎侧弯。通过相关分析分析LLD或LLDR与腰椎Cobb角之间的关系。结果：LLD和LLDR均与腰椎Cobb角呈正相关（γ=0.53、γ=0.62），如以下回归方程所示：腰椎Cobb角（°）=0.316×腿长差异（mm）+2.83，腰椎Cobb角度（°）=2.19×腿长偏差率（%）+3.0，等。腿长差异和腰椎侧弯之间的相关性分析使用全长度站立射线照片。创伤肢体康复策略2022；17（3）:144-147。

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

Strategies in Trauma and Limb Reconstruction Medicine-Orthopedics and Sports Medicine

CiteScore

1.50

自引率

0.00%

发文量

期刊介绍： Strategies in Trauma and Limb Reconstruction is dedicated to surgeons, allied medical professionals and researchers in the field of orthopaedics and trauma. The scope of the journal is to discuss the fields of skeletal injury, and the complications thereof, congenital and acquired limb deformities and deficiencies, and orthopaedic-related infection, together with their surgical and non-surgical treatments. The journal publishes original articles, reviews, case reports, descriptions of new or recognised treatment techniques, forum discussions of clinical scenarios and relevant correspondence. It aims to provide a widely accessible source of useful information to practitioners in the field through the problem- or technique-based approach of published articles.