Abstract：
OBJECTIVE: The aim is to compare the results of isolated hip arthroscopy in patients with borderline dysplasia with Lateral center edge angle (LCEA) between 18° and 25° with a control group of patients with normal LCEA (> 25°).
METHODS: Fifty hip arthroscopies performed in 45 patients were retrospectively evaluated. Exclusion criteria were: age > 40, hip arthritis > grade 2 according to Tonnis classification, femoral head avascular necrosis, pediatric\'s orthopaedics conditions and true dysplasia with LCEA < 18°.Two groups were identified: group A with 15 hips with LCEA between 25° and 18° and Group control B made of 35 hips with LCEA > 25°.
RESULTS: The groups were homogeneous for demography and pre-operative WOMAC and HOOS. Osteoplasty for CAM were performed in 100% of patients in both groups, only in 12 hips (34.4%) in group B we had both femoral and acetabular osteoplasty. Labral repair was performed in 86% of patients in group A, in 60% of patients in group B, capsular plication in 93% of group A, in 5% of case of group B. WOMAC and HOOS statically significant improved in both groups at final follow-up (24 months). No cases in both groups required conversion to total hip arthroplasty. Clinical outcomes of study group were comparable to the control group.
CONCLUSIONS: Even if the present small series is not conclusive, we suggest isolated arthroscopic management of patients with FAI and LCEA between 18° and 25°, but capsular plication and careful labral management are strongly recommended.
METHODS: Level IV.
METHODS: Fifty hip arthroscopies performed in 45 patients were retrospectively evaluated. Exclusion criteria were: age > 40, hip arthritis > grade 2 according to Tonnis classification, femoral head avascular necrosis, pediatric\'s orthopaedics conditions and true dysplasia with LCEA < 18°.Two groups were identified: group A with 15 hips with LCEA between 25° and 18° and Group control B made of 35 hips with LCEA > 25°.
RESULTS: The groups were homogeneous for demography and pre-operative WOMAC and HOOS. Osteoplasty for CAM were performed in 100% of patients in both groups, only in 12 hips (34.4%) in group B we had both femoral and acetabular osteoplasty. Labral repair was performed in 86% of patients in group A, in 60% of patients in group B, capsular plication in 93% of group A, in 5% of case of group B. WOMAC and HOOS statically significant improved in both groups at final follow-up (24 months). No cases in both groups required conversion to total hip arthroplasty. Clinical outcomes of study group were comparable to the control group.
CONCLUSIONS: Even if the present small series is not conclusive, we suggest isolated arthroscopic management of patients with FAI and LCEA between 18° and 25°, but capsular plication and careful labral management are strongly recommended.
METHODS: Level IV.
摘要：
目的：目的是比较侧中央边缘角（LCEA）在18°至25°之间的临界发育不良患者与正常LCEA（>25°）的对照组的孤立髋关节镜检查结果。
方法：对45例患者进行了50次髋关节镜检查。排除标准为：年龄>40岁，根据Tonnis分类，髋关节炎>2级，股骨头缺血性坏死，儿童的骨科条件和真正的发育不良与LCEA<18°。确定了两组：A组15髋，LCEA在25°至18°之间，对照组B由35髋，LCEA>25°。
结果：各组在人口统计学和术前WOMAC和HOOS方面是同质的。两组中100%的患者都进行了CAM的骨成形术,B组仅在12髋（34.4％）中进行了股骨和髋臼骨成形术。A组86％的患者进行了Labral修复，B组60%的患者,A组93％的包膜折叠，在B组5％的病例中，WOMAC和HOOS在最终随访（24个月）时两组均有统计学意义的改善。两组均无一例需要转换为全髋关节置换术。研究组的临床结果与对照组相当。
结论：即使目前的小系列没有定论，我们建议对FAI和LCEA在18°和25°之间的患者进行单独的关节镜治疗，但强烈建议进行囊袋折叠和仔细管理。
方法：四级。
方法：对45例患者进行了50次髋关节镜检查。排除标准为：年龄>40岁，根据Tonnis分类，髋关节炎>2级，股骨头缺血性坏死，儿童的骨科条件和真正的发育不良与LCEA<18°。确定了两组：A组15髋，LCEA在25°至18°之间，对照组B由35髋，LCEA>25°。
结果：各组在人口统计学和术前WOMAC和HOOS方面是同质的。两组中100%的患者都进行了CAM的骨成形术,B组仅在12髋（34.4％）中进行了股骨和髋臼骨成形术。A组86％的患者进行了Labral修复，B组60%的患者,A组93％的包膜折叠，在B组5％的病例中，WOMAC和HOOS在最终随访（24个月）时两组均有统计学意义的改善。两组均无一例需要转换为全髋关节置换术。研究组的临床结果与对照组相当。
结论：即使目前的小系列没有定论，我们建议对FAI和LCEA在18°和25°之间的患者进行单独的关节镜治疗，但强烈建议进行囊袋折叠和仔细管理。
方法：四级。
