The effectiveness of hip arthroscopic surgery for the treatment of femoroacetabular impingement syndrome: A systematic review and meta-analysis

OBJECTIVE:To determine the effectiveness of hip arthroscopic surgery for the treatment of femoroacetabular impingement syndrome (FAI). DESIGN:Systematic review with meta-analysis. DATA SOURCES:We performed electronic database searches in MEDLINE, Embase, SPORTDiscus, CINAHL, Cochrane Central Register for Controlled Trials (CENTRAL), Web of Science, Scopus, the WHO International Clinical Trials Registry Platform and ClinicalTrials.gov from their inception to July 10th 2019. ELIGIBILITY CRITERIA FOR SELECTING STUDIES:We included randomised controlled trials (RCTs) comparing hip arthroscopic surgery to a placebo/sham surgery and other non-operative comparators (e.g. no intervention, physiotherapy, etc.). Two authors independently selected studies, rated risk of bias, extracted data, and judged overall certainty of evidence using GRADE. Hip-specific quality of life (QoL) at 12 months was the primary outcome. RESULTS:We identified three RCTs (n = 650 participants). There is high certainty evidence from three RCTs (n = 574 participants) that hip arthroscopic surgery provided superior outcomes compared to non-operative care for hip-specific QoL at 12 months (mean difference (MD): 11.02 points, 95% CI 4.83-17.21). Low quality evidence suggests that arthroscopic surgery provided similar outcomes to non-operative care for hip-specific QoL at 24 months (MD: 6.3, 95% CI -6.1 to 18.7). CONCLUSION:Hip arthroscopic surgery for FAI provides superior outcomes compared to non-operative care at 12 months, but not at 24 months. Placebo trials are needed to establish the efficacy of hip arthroscopic surgery.