Evaluation of the sagittal vertical axis with postural and 3D motion analyses in lumbar spinal stenosis.

IF 2.2 3区医学 Q2 ORTHOPEDICS

BMC Musculoskeletal Disorders Pub Date : 2024-10-19 DOI:10.1186/s12891-024-07923-y

Mathieu Gueugnon, Louis Riglet, Isabelle Fournel, Eléa Ksiazek, Jacques Beaurain, Renan Chapon, Paul Ornetti, Davy Laroche

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引用次数: 0

Abstract

Background: Sagittal balance, commonly impaired in lumbar spinal stenosis (LSS) patients, is typically assessed using the sagittal vertical axis (SVA) with EOS imaging. However, to limit X-ray exposure and medical costs, it could be interesting to evaluate the capacity of quantified motion analysis to estimate the 3D modeling of SVA in patients with symptomatic LSS.

Methods: An estimation of the SVA in patients with LSS was performed with 3D motion analysis. SVA and "C7_PSI" (orthogonal horizontal distance between the vertical lines through the markers of the C7 vertebra and the middle of the posterosuperior iliac spine) were measured on 37 LSS patients using EOS radiography and postural and 3D motion analysis, respectively. Multiple stepwise linear regressions were performed with EOS SVA according to age, body mass index, C7_PSI and/or postural variables.

Results: A highly significant relationship was found between SVA and C7_PSI, mediolateral amplitude of CoP displacements and age (adjusted R²=0.69, p < 0.0001). While the postural analysis did not reveal significant relationships, the model using 3D parameters revealed significant relationships between radiographic SVA and C7_PSI and age (adjusted R²=0.65, p < 0.0001). 3D motion parameters with or without postural parameters may explain more than 65% of the variance seen in EOS imaging performed on LSS patients.

Conclusions: These promising results in LSS patients suggest that the estimation of SVA with 3D motion analysis offers an alternative to EOS. In addition, SVA could be assessed at rest and during dynamic tasks.

Trial registration: This study has been published in Clinical Trial registration (reference NCT03194607).

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通过姿势和三维运动分析评估腰椎管狭窄症的矢状垂直轴。

背景：在腰椎管狭窄症（LSS）患者中，矢状位平衡通常会受到损害，通常使用 EOS 成像的矢状垂直轴（SVA）来评估矢状位平衡。然而，为了限制 X 射线暴露和医疗费用，对量化运动分析能力进行评估以估算无症状腰椎管狭窄症患者矢状纵轴的三维模型可能很有意义：方法：利用三维运动分析对 LSS 患者的 SVA 进行估算。使用 EOS 放射摄影术和姿势与三维运动分析分别测量了 37 名 LSS 患者的 SVA 和 "C7_PSI"（通过 C7 椎体标记的垂直线与髂后上棘中部之间的正交水平距离）。根据年龄、体重指数、C7_PSI 和/或姿势变量对 EOS SVA 进行了多重逐步线性回归：结果：发现 SVA 与 C7_PSI、CoP 位移的内外侧振幅和年龄之间存在非常明显的关系（调整后 R²=0.69，p 结论：SVA 与 C7_PSI、CoP 位移的内外侧振幅和年龄之间存在非常明显的关系：在 LSS 患者中取得的这些令人鼓舞的结果表明，通过三维运动分析估算 SVA 可以替代 EOS。此外，SVA 可以在静态和动态任务中进行评估：本研究已发表于临床试验注册（参考文献 NCT03194607）。

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

BMC Musculoskeletal Disorders 医学-风湿病学

CiteScore

3.80

自引率

8.70%

发文量

1017

审稿时长

3-6 weeks

期刊介绍： BMC Musculoskeletal Disorders is an open access, peer-reviewed journal that considers articles on all aspects of the prevention, diagnosis and management of musculoskeletal disorders, as well as related molecular genetics, pathophysiology, and epidemiology. The scope of the Journal covers research into rheumatic diseases where the primary focus relates specifically to a component(s) of the musculoskeletal system.