ArticleBMC musculoskeletal disorders2023
Does capsular repair make a difference in the integrity and thickness of anterior capsule in the setting of borderline hip dysplasia.
Article in BMC musculoskeletal disorders, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Age and Preoperative Anterior Hip Capsule Thickness May Affect Capsule Healing in Patients With Femoroacetabular Impingement Syndrome Undergoing Arthroscopic Surgery Without Capsule Repair.Orthopaedic journal of sports medicine · 2025Article
- Study on the Evaluation of Hip Dysplasia by Measuring the Lateral Center-Edge Angle of Hip Joint on X-Ray Using Deep Learning Algorithm.International journal of general medicine · 2025Article
- A retrospective study of arthroscopic treatment for patients with bordline developmental dysplasia of the hip.International orthopaedics · 2024Article
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Authors and funding
4 authors.
Funding
Abstract
backgroundHip joint capsular ligaments serve a fundamental role in balancing functional mobility and joint stability. However, few studies had focused on postoperative capsule changes in patients with borderline developmental dysplasia of the hip (BDDH). PURPOSE: To evaluate the integrity and thickness of anterior hip capsular thickness on pre and postoperative MRI in BDDH patients. STUDY
designCase series study; Level of evidence III.
methodsA retrospective analysis was performed using data from BDDH patients who had arthroscopy between 2016 and 2019. Two groups were created and propensity-score matched based on whether the capsule was sutured. The study group comprised patients who have undergone routine capsule repair between 2018 and 2019. The control group includes BDDH patients with unrepaired capsulotomy between 2016 and 2018. Capsular integrity and thickness were measured on MRI before surgery and at least one year postoperatively. Furthermore, analysis was performed on correlations between the presence of a capsular defect and related factors.
resultsPropensity-score matching yielded 37 hips in the repair group and 37 hips in the non-repair group. There were no significant differences detected in age, sex, and BMI between the two groups. MRI detected capsular defects in 3 hips (8.1%) in the repair group and 10 hips (27.0%) in the non-repair group (p = 0.032). The defect was found to be along the interportal capsulotomy line in all capsular defect cases. Moreover, the postoperative anterior capsule thickness in the study group was significantly thinner compared with preoperative (2.9 ± 0.5 mm vs 3.7 ± 0.6 mm; p < 0.001), and no significant difference was detected in the control group. There were no statistically significant correlations between the presence of a defect capsule and demographic characteristics such as patient age, sex, BMI, preoperative alpha angle, or lateral center-edge angle (LCEA).
conclusionThe majority (91.9%) of the repaired hip capsules in BDDH patients remained closed compared with patients without repair (73.0%). The anterior capsule was significantly thinner in the zone of capsulotomy postoperative compared with preoperative in patients with unrepaired capsules. The presence of a defective capsule does not correlate with demographic factors.
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