伴有股髋臼撞击综合征的边缘性发育不良髋在术中牵引检查中显示轴向牵引距离增加

Q3 Medicine

Arthroscopy Sports Medicine and Rehabilitation Pub Date : 2025-06-01 DOI:10.1016/j.asmr.2025.101096

Joseph Featherall M.D., Reece M. Rosenthal M.D., Allan K. Metz M.D., Benjamin T. Johnson B.S., Ameen Khalil M.S., Alexander J. Mortensen M.D., Travis G. Maak M.D., Stephen K. Aoki M.D.

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引用次数: 0

摘要

目的比较边缘型发育不良髋臼与正常髋臼牵张情况。方法对前瞻性收集的资料进行回顾性分析。术中牵张资料、x线照片和患者人口统计资料被编入数据库。所有具有边缘性髋发育不良的患者，根据外侧中心边缘角度为18°至25°来确定，构成边缘性髋发育不良队列。一组股骨头覆盖正常的髋关节组成正常覆盖组。比较各组之间的人口统计变量以确保相似性。采用学生t检验对25、50、75和100磅力（lbf）下的轴向牵引距离进行组间比较。采用多变量回归控制协变量。结果我们鉴定了136个正常覆盖的髋关节和36个边缘发育不良的髋关节进行比较。组间人口统计变量相似。发育不良组在75 lbf牵引力（6.47±2.95 mm vs 5.07±3.11 mm, P = 0.016）和100 lbf牵引力（9.47±2.00 mm vs 7.95±2.50 mm, P = 0.001）时表现出更大的轴向牵引力。多变量线性回归显示，女性患者牵张距离增加，α角较小，外侧中心边缘角测量的覆盖范围较小。结论在接受髋关节镜治疗股髋臼撞击综合征的人群中，边缘性髋关节发育不良患者术中轴向牵张距离大于非发育不良患者。证据水平：III级，回顾性队列研究。

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Borderline Dysplastic Hips With Femoroacetabular Impingement Syndrome Show Increased Axial Distraction Distance on an Intraoperative Traction Examination

Purpose

To compare distraction profiles of borderline dysplastic hips with hips of normal acetabular morphology.

Methods

This study was a retrospective analysis of prospectively collected data. Intraoperative distraction profile, radiographic, and patient demographic data were compiled in a database. All patients with borderline dysplastic hips, as determined by a lateral center-edge angle of 18° to 25°, comprised the borderline dysplastic cohort. A cohort of hips with normal femoral head coverage comprised the normal coverage group. Demographic variables between groups were compared to ensure similarity. Between-group comparisons of axial distraction distance at 25, 50, 75, and 100 pounds-force (lbf) were conducted using the Student t test. A multivariable regression was conducted to control for covariates.

Results

We identified 136 hips with normal coverage and 36 hips with borderline dysplasia for comparison. Demographic variables were similar between groups. The dysplastic group showed greater axial distractibility at 75 lbf of traction force (6.47 ± 2.95 mm vs 5.07 ± 3.11 mm, P = .016) and 100 lbf of traction force (9.47 ± 2.00 mm vs 7.95 ± 2.50 mm, P = .001). Multivariable linear regression showed that an increased distraction distance was associated with female patients, smaller alpha angles, and less coverage measured by the lateral center-edge angle.

Conclusions

In a population undergoing hip arthroscopy for femoroacetabular impingement syndrome, patients with borderline hip dysplasia showed greater intraoperative axial distraction distances than patients with nondysplastic hips.