Does capsular repair make a difference in the integrity and thickness of anterior capsule in the setting of borderline hip dysplasia
Abstract Background Hip 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 a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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BMC
2023-03-01
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| Series: | BMC Musculoskeletal Disorders |
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| Online Access: | https://doi.org/10.1186/s12891-023-06307-y |
| _version_ | 1797865920342786048 |
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| author | Fan Yang Hong-Jie Huang Xin Zhang Jian-Quan Wang |
| author_facet | Fan Yang Hong-Jie Huang Xin Zhang Jian-Quan Wang |
| author_sort | Fan Yang |
| collection | DOAJ |
| description | Abstract Background Hip 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 design Case series study; Level of evidence III. Methods A 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. Results Propensity-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). Conclusion The 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. |
| first_indexed | 2024-04-09T23:15:53Z |
| format | Article |
| id | doaj.art-f2ffa49f3ba34720843faecc8dca284b |
| institution | Directory Open Access Journal |
| issn | 1471-2474 |
| language | English |
| last_indexed | 2024-04-09T23:15:53Z |
| publishDate | 2023-03-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Musculoskeletal Disorders |
| spelling | doaj.art-f2ffa49f3ba34720843faecc8dca284b2023-03-22T10:02:50ZengBMCBMC Musculoskeletal Disorders1471-24742023-03-012411710.1186/s12891-023-06307-yDoes capsular repair make a difference in the integrity and thickness of anterior capsule in the setting of borderline hip dysplasiaFan Yang0Hong-Jie Huang1Xin Zhang2Jian-Quan Wang3Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Haidian DistrictDepartment of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Haidian DistrictDepartment of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Haidian DistrictDepartment of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Haidian DistrictAbstract Background Hip 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 design Case series study; Level of evidence III. Methods A 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. Results Propensity-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). Conclusion The 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.https://doi.org/10.1186/s12891-023-06307-yBorderline developmental dysplasia of the hipAnterior capsular defectAnterior capsular thicknessMagnetic resonance imaging |
| spellingShingle | Fan Yang Hong-Jie Huang Xin Zhang Jian-Quan Wang Does capsular repair make a difference in the integrity and thickness of anterior capsule in the setting of borderline hip dysplasia BMC Musculoskeletal Disorders Borderline developmental dysplasia of the hip Anterior capsular defect Anterior capsular thickness Magnetic resonance imaging |
| title | Does capsular repair make a difference in the integrity and thickness of anterior capsule in the setting of borderline hip dysplasia |
| title_full | Does capsular repair make a difference in the integrity and thickness of anterior capsule in the setting of borderline hip dysplasia |
| title_fullStr | Does capsular repair make a difference in the integrity and thickness of anterior capsule in the setting of borderline hip dysplasia |
| title_full_unstemmed | Does capsular repair make a difference in the integrity and thickness of anterior capsule in the setting of borderline hip dysplasia |
| title_short | Does capsular repair make a difference in the integrity and thickness of anterior capsule in the setting of borderline hip dysplasia |
| title_sort | does capsular repair make a difference in the integrity and thickness of anterior capsule in the setting of borderline hip dysplasia |
| topic | Borderline developmental dysplasia of the hip Anterior capsular defect Anterior capsular thickness Magnetic resonance imaging |
| url | https://doi.org/10.1186/s12891-023-06307-y |
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