Elevated loading at the posterior acetabular edge of dysplastic hips during double-legged squat.
Elevated loading at the posterior acetabular edge of dysplastic hips during double-legged squat.
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DOI：
10.1002/jor.25249
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发表时间：
2022-09
影响因子：
2.8
通讯作者：
Harris, Michael D.
中科院分区：
文献类型：
--
作者：
Song, Ke;Pascual-Garrido, Cecilia;Clohisy, John C.;Harris, Michael D.
发育性发育不良（DDH）的髋关节发生过早髋关节骨关节炎的风险较高，这通常是由机械诱导的关节组织损伤加速的。DDH的一种常见损伤形式是由髋臼浅缘处的异常载荷引起的盂唇撕裂。尽管大多数报告的髋臼发育不良相关盂唇撕裂发生在髋臼前上，但后盂唇撕裂在生活方式涉及频繁高髋关节屈曲任务（如蹲下）的个体中普遍存在。为了更好地了解高髋屈曲时软骨盂唇损伤的区域特异性风险，我们使用基于图像的肌肉骨骼模型比较了有症状DDH髋关节（n = 10）和健康对照组（n = 10）在双腿下蹲时的髋臼边缘载荷（AEL）。与对照组相比，DDH髋关节在下蹲最低点的瞬时后AEL较高（2.6 vs. 1.8 ×BW，p ≤ 0.04），下蹲运动持续时间内的累积载荷较高（2.6 vs. 1.9 ×BW*s，p ≤ 0.04）。后AEL升高与髋关节净伸展力矩和后关节反作用力增加一致，并与DDH髋臼畸形的严重程度相关。我们的研究结果表明，后AEL升高的髋关节有症状的DDH在双腿蹲，这可能有助于软骨唇损伤的个人谁经常执行这样的高髋关节屈曲任务。DDH的临床评估在建立诊断和计划个性化治疗时应考虑患者特定的解剖结构和生活方式因素。
Hips with developmental dysplasia (DDH) are at a heightened risk of premature hip osteoarthritis, which is often expedited by mechanically induced articular tissue damage. A prevalent form of damage in DDH is labral tears caused by abnormal loading at the shallow acetabular edge. Although the majority of reported DDH-related labral tears occur in the antero-superior acetabulum, posterior labral tears are prevalent in individuals whose lifestyle involves frequent high hip flexion tasks such as squatting. To better understand region-specific risks for chondrolabral damage during high hip flexion, we used image-based musculoskeletal models to compare acetabular edge loading (AEL) during double-legged squat between hips with symptomatic DDH (n = 10) and healthy controls (n = 10). Compared to controls, hips with DDH had higher instantaneous posterior AEL at the lowest point of squat (2.6 vs. 1.8 ×BW, p ≤ 0.04), and higher accumulative loading across the duration of the squatting motion (2.6 vs. 1.9 ×BW*s, p ≤ 0.04). Elevated posterior AEL coincided with increased net hip extension moments and posterior joint reaction forces, and was correlated with the severity of DDH acetabular deformity. Our findings suggest that posterior AEL is elevated in hips with symptomatic DDH during double-legged squat, which may contribute to chondrolabral damage in individuals who often perform such high hip flexion tasks. Clinical evaluation of DDH should consider patient-specific anatomy and lifestyle factors when establishing diagnoses and planning personalized treatment.
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影响因子：
2.7
作者：
Song K;Pascual-Garrido C;Clohisy JC;Harris MD
通讯作者：
Harris MD
影响因子：
3.2
作者：
Lewis, CL;Sahrmann, SA
通讯作者：
Sahrmann, SA
影响因子：
4.7
作者：
Santori, N;Villar, RN
通讯作者：
Villar, RN
影响因子：
4.7
作者：
Hase, T;Ueo, T
通讯作者：
Ueo, T
影响因子：
1.3
作者：
Goronzy, Jens;Blum, Sophia;Thielemann, Falk
通讯作者：
Thielemann, Falk