Femoral de-rotation osteotomy (FDO) and hip arthroscopy are both recognized surgical options for the management of femoroacetabular impingement (FAI) in the setting of decreased femoral anteversion (<5°). Minimal comparative data exist regarding the difference in outcomes between these two techniques, and we believe this is the first study to provide that comparison. This retrospective cohort study included a total of 20 patients with such pathology, matched for age, gender and body mass index. A total of 10 patients were included in the FDO group [median anteversion −0.5° (true retroversion); average follow-up 17.9 months]. In total, 10 patients were included in the hip arthroscopy group [median anteversion −0.5° (true retroversion); average follow-up 28.5 months]. Both groups demonstrated statistically and clinically significant improvement in the post-operative International Hip Outcome Tool (iHOT-33) scores [median improvement: FDO group, 37.7 points (r 14–58.8; P < 0.041); hip arthroscopy group, 35.9 points (r 11.1–81; P < 0.05)], noting that the minimal clinically important difference for the iHOT-33 is 6.1 points. However, the study was not adequately powered to delineate a difference in improvement between the two groups. The findings suggest significant improvement in patient-reported outcomes, and clinical findings can be achieved with either FDO or hip arthroscopy for FAI in the setting of decreased femoral anteversion. However, selection of the most suitable surgical procedure using a patient-specific approach may optimize outcomes in this challenging population.

中文翻译：

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股骨去旋截骨术与髋关节镜治疗成年股骨前倾减少患者的股骨髋臼撞击：一项匹配的回顾性队列研究

股骨去旋截骨术 (FDO) 和髋关节镜检查都是公认的在股骨前倾角减少 (<5°) 的情况下治疗股骨髋臼撞击 (FAI) 的手术选择。关于这两种技术之间结果差异的比较数据很少，我们相信这是第一个提供这种比较的研究。这项回顾性队列研究共纳入 20 名患有此类疾病的患者，与年龄、性别和体重指数相匹配。FDO组共有10名患者[中位前倾-0.5°（真后倾）；平均随访 17.9 个月]。髋关节镜组共有 10 名患者 [中位前倾 -0.5°（真后倾）；平均随访 28.5 个月]。两组在术后国际髋关节结果工具 (iHOT-33) 评分中均表现出统计学和临床​​显着改善 [中位改善：FDO 组，37.7 分 (r 14–58.8；P < 0.041)；髋关节镜组，35.9 分（r 11.1–81；P < 0.05）]，注意到 iHOT-33 的最小临床重要差异为 6.1 分。然而，该研究不足以描述两组之间改善的差异。研究结果表明，患者报告的结果有显着改善，在股骨前倾减少的情况下，FDO 或髋关节镜检查可实现 FAI 的临床结果。然而，使用针对患者的方法选择最合适的手术程序可能会优化这一具有挑战性的人群的结果。