Background: While both short- and long-term outcomes after hip arthroscopy for femoroacetabular impingement syndrome (FAIS) have been reported, the predictive relationship between the two has yet to be established. Purpose: To determine whether the degree of improvement in patient-reported outcomes observed at 1 year postoperatively predicts long-term outcomes at 10 years after primary hip arthroscopy for FAIS. Study Design: Cohort study; Level of evidence, 3 Methods: Patients who underwent primary hip arthroscopy for FAIS by a single surgeon at a single institution with 10-year follow-up were identified. Outcomes were assessed using the modified Harris Hip Score (mHHS) and Nonarthritic Hip Score (NAHS) at baseline and 1, 2, 5, and 10 years postoperatively. Patients were classified as either high improvement (HI) or low improvement (LI) based on if they achieved the median 1-year change in mHHS from baseline. Chart review was performed to collect surgical details such as operative procedures, complications, and revision surgery. Outcomes were compared between groups over time using repeated-measures analysis of variance. Failure rates were determined using Kaplan-Meier and Mantel-Cox log-rank analyses. Results: A total of 129 patients with a mean age of 41.0 ± 13.5 years and mean body mass index of 25.0 ± 4.3 kg/m 2 were included. Both the HI and LI groups demonstrated significant improvement in mHHS and NAHS from baseline at all follow-up time points ( P < .001). The HI group had significantly higher outcome scores at all time points up to 10 years after arthroscopy compared with the LI group ( P = .018). Additionally, a greater proportion of patients in the HI group achieved the Patient Acceptable Symptom State and minimal clinically important difference compared with the LI group at the 10-year follow-up ( P = .018). Rates of overall complications, revision arthroscopy, and conversion to total hip arthroscopy were significantly higher in the LI group ( P = .013, P = .009, and P = .004, respectively). The mean hip survival time after the index operation was shorter for the LI group (11.9 ± 0.5 years) than for the HI group (13.2 ± 0.2 years) ( P = .002). Conclusion: Patients who experienced greater improvement in the first year after hip arthroscopy had superior 10-year outcome scores, fewer complications, and lower rates of reoperation compared with those who experienced minimal improvement in the same period.

中文翻译：

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1 年结果预测接受髋关节镜治疗股骨髋臼撞击的患者的 10 年结果

背景： 虽然已经报道了股骨髋臼撞击综合征 （FAIS） 的髋关节镜术后短期和长期结果，但两者之间的预测关系尚未建立。目的： 确定术后 1 年观察到的患者报告结局的改善程度是否能预测 FAIS 初次髋关节镜手术后 10 年的长期结局。研究设计：队列研究;证据水平，3 方法 ： 确定了由单一机构的一名外科医生接受初次髋关节镜治疗 FAIS 并随访 10 年的患者。在基线和术后 1 、 2 、 5 和 10 年使用改良的 Harris 髋关节评分 （mHHS） 和非关节炎髋关节评分 （NAHS） 评估结局。根据患者是否达到 mHHS 相对于基线的中位 1 年变化，将患者分为高改善 （HI） 或低改善 （LI）。进行图表审查以收集手术细节，例如手术程序、并发症和翻修手术。使用重复测量方差分析比较各组间随时间推移的结局。使用 Kaplan-Meier 和 Mantel-Cox 对数秩分析确定失败率。结果： 共纳入 129 例患者，平均年龄 41.0 ± 13.5 岁，平均体重指数为 25.0 ± 4.3 kg/m 2。 在所有随访时间点，HI 和 LI 组均表现出 mHHS 和 NAHS 较基线的显着改善 （P < .001）。与 LI 组相比，HI 组在关节镜术后 10 年的所有时间点均具有显著更高的结果评分 （P = .018）。此外，在 10 年随访中，与 LI 组相比，HI 组中更大比例的患者达到患者可接受的症状状态和最小的临床重要差异 （P = .018）。LI 组的总体并发症、翻修关节镜检查和转换为全髋关节镜检查的发生率显著更高 （分别为 P = .013、P = .009 和 P = .004）。LI 组 （11.9 ± 0.5 年） 指数手术后的平均髋关节生存时间短于 HI 组 （13.2 ± 0.2 年） （P = .002）。结论： 与同期改善最小的患者相比，髋关节镜术后第一年改善较大的患者 10 年结局评分更高，并发症更少，再次手术率更低。