Surgical Treatment of FemoroacetabularImpingement: Hip Arthroscopy Versus SurgicalHip Dislocation
Background: Surgical treatment of femoroacetabular impingement (FAI) continues to evolve and is most commonlyapproached with either hip arthroscopy (HA) or surgical dislocation (SD) of the hip. The purpose of this study was tocompare the outcomes of similar patients undergoing surgical treatment of FAI with either HA or SD.
Methods: A prospective multicenter cohort study of patients undergoing primary surgical treatment of FAI wasperformed. Follow-up at a minimum of 1 year (mean, 4.3 years) was available for 621 hips (81.7%), including 399procedures with HA and 222 procedures with SD.Propensity scores were calculated and reflect the likelihood ofsurgical treatment with HA versus SD for a given set of covariates. Propensity scores allowed 1:1 matching toidentify similar patients at baseline. After propensity matching, 128 matched pairs of patients who underwent HAand 128 matched pairs of those who underwent SD were included in the study. The primary outcome was thepostoperative modified Harris hip score (mHHS); secondary outcomes included the Hip disability and OsteoarthritisOutcome Score (HOOS), the University of California Los Angeles (UCLA) activity score, and the Short Form-12 (SF-12) physical and mental subscores, as well as the rate of persistent symptoms, revision surgery, and total hiparthroplasty (THA).
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