Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, 49 North Garden Road, Haidian District, 100191, Beijing, China.
BMC Musculoskelet Disord. 2021 May 28;22(1):491. doi: 10.1186/s12891-021-04384-5.
Osteoid osteoma (OO) of the acetabulum is a relatively rare disease. However, the the clinical outcomes of hip arthroscopy for treatment of OO of the acetabulum are still uncertain.
We evaluated consecutive patients who were diagnosed with OO of the acetabulum and who underwent hip arthroscopy at our hospital between January 2013 and March 2020. All patients underwent a preoperative physical examination. Preoperative supine anteroposterior hip radiography, cross-table lateral radiographs, computed tomography (CT), and magnetic resonance imaging were performed in all patients. The alpha angle and lateral center-edge angle were measured before surgery. Supine anteroposterior hip radiography and CT were performed in all patients postoperatively. Preoperative patient-reported outcomes (PROs), including Visual Analog Scale (VAS), the International Hip Outcome Tool-12 (iHOT-12) and modified Harris Hip Score (mHHS), and PROs at final follow-up were evaluated.
A total of 6 patients (mean age, 18.7 years; age range, 6-31 years; 5 males and 1 females) were included in this study. The average follow-up period after surgery was 28.3 months (range, 6-90 months). Before surgery, the mean mHHS was 45.2 ± 10.5 (range, 33-56), the mean iHOT-12 was 33.3 ± 14.5 (range, 13-49), and mean VAS was 8.2 ± 1.0 (range, 7-9). At one month after surgery, mean mHHS was 78.7 ± 1.9 (range, 77-81), iHOT-12 was 71.0 ± 4.5 (range, 68-80), and mean VAS was 0. At the final post-operative follow-up, mean mHHS was 89.2 ± 2.1 (range, 86-91), iHOT-12 was 93.5 ± 5.0 (range, 88-98), and mean VAS was 0. All results, except VAS between one month after surgery and at final follow-up, demonstrated statistically significant improvement (P < 0.05). One patient underwent revision surgery.
Hip arthroscopy has good clinical outcomes in the treatment of OO of the acetabulum. Further study on the mechanism of secondary femoroacetabular impingement (FAI) caused by OO of the acetabulum is needed. More cases of arthroscopic excision and longer follow-up are also needed to better prove the clinical outcomes of hip arthroscopy for OO of the acetabulum.
髋臼骨样骨瘤（OO）是一种相对罕见的疾病。然而，髋关节镜治疗髋臼 OO 的临床结果仍不确定。
我们评估了 2013 年 1 月至 2020 年 3 月期间在我院接受髋关节镜治疗髋臼 OO 的连续患者。所有患者均接受术前体格检查。所有患者均行术前仰卧前后位髋关节 X 线片、对侧侧位 X 线片、计算机断层扫描（CT）和磁共振成像（MRI）检查。手术前测量 alpha 角和外侧中心边缘角。所有患者术后均行仰卧前后位髋关节 X 线片和 CT 检查。评估术前患者报告的结果（PROs），包括视觉模拟量表（VAS）、国际髋关节结果工具 12 项（iHOT-12）和改良 Harris 髋关节评分（mHHS）以及最终随访时的 PROs。
本研究共纳入 6 例患者（平均年龄 18.7 岁；年龄范围 6-31 岁；5 例男性，1 例女性）。术后平均随访时间为 28.3 个月（范围 6-90 个月）。术前 mHHS 平均为 45.2±10.5（范围 33-56），iHOT-12 平均为 33.3±14.5（范围 13-49），VAS 平均为 8.2±1.0（范围 7-9）。术后 1 个月时，mHHS 平均为 78.7±1.9（范围 77-81），iHOT-12 平均为 71.0±4.5（范围 68-80），VAS 平均为 0。最终随访时，mHHS 平均为 89.2±2.1（范围 86-91），iHOT-12 平均为 93.5±5.0（范围 88-98），VAS 平均为 0。除术后 1 个月和最终随访时的 VAS 外，所有结果均有统计学意义（P<0.05）。1 例患者接受了翻修手术。
髋关节镜治疗髋臼 OO 的临床效果良好。需要进一步研究髋臼 OO 引起的继发性股骨髋臼撞击症（FAI）的机制。还需要更多的关节镜切除病例和更长时间的随访，以更好地证明髋关节镜治疗髋臼 OO 的临床效果。
