%0 Journal Article
%T When Do Patients Improve After Hip Arthroscopy for Femoroacetabular Impingement? A Prospective Cohort Analysis
%A Alan L. Zhang
%A Joseph R. Sheridan
%A Kristina R. Borak
%A Sergio E. Flores
%J The American Journal of Sports Medicine
%@ 1552-3365
%D 2018
%R 10.1177/0363546518795696
%X Hip arthroscopy for femoroacetabular impingement (FAI) has been shown to improve patient outcomes, especially for returning to sport. Although previous studies often evaluated outcomes 2 years after hip arthroscopy, there has been no analysis of the progression of patient improvement over time or with respect to achieving the minimal clinically important difference (MCID). The purpose was to prospectively evaluate changes in patient-reported outcome (PRO) scores during the first 2 years after hip arthroscopy for FAI and to analyze when the MCID is achieved. It was hypothesized that clinically significant changes will be reached by 1 year after surgery. Case series; Level of evidence, 4. Patients undergoing hip arthroscopy for FAI were prospectively enrolled, and they completed the 12-Item Short Form Health survey (SF-12), modified Harris Hip Score, and Hip disability and Osteoarthritis Outcome Score (HOOS) at preoperative baseline and 3 months, 6 months, 1 year, and 2 years after surgery. Mean scores and the percentage of patients reaching the MCID at each time point were analyzed via analysis of variance and Cochrane-Armitage trend tests. A total of 129 hips from 122 patients were evaluated, revealing significant improvements after hip arthroscopy for FAI (PRO scores increased 19 to 45 points) with 95.8%, 93.6%, and 84.8% of patients achieving the MCID for HOOS-Sports, HOOS¨CQuality of Life (QoL), and HOOS-Pain, respectively, at 2-year follow-up. Analysis of PRO change showed that for all scores, the greatest improvement occurred from presurgery to postoperative 3 months, with lesser improvements at subsequent 6-month, 1-year, and 2-year time points (P < .001). The SF-12 physical component score, HOOS-Sports, and HOOS-QoL continued to show statistically significant improvements through 2 years, while other scores plateaued after 3 months. The percentage of patients achieving the MCID for HOOS-Sports, HOOS-QoL, and HOOS-Pain continued to increase over 2 years, but the percentage achieving the MCID did not increase after 3 months for all other scores. Hip arthroscopy for FAI yields significant improvements in patient outcomes within 2 years of surgery. The majority of improvement occurs within 3 months after surgery, but certain outcomes, such as returning to sport, QoL, and pain, can continue to improve through 2 years
%K hip arthroscopy
%K femoroacetabular impingement (FAI)
%K patient outcomes
%K rate of improvement
%K minimal clinically important difference (MCID)
%U https://journals.sagepub.com/doi/full/10.1177/0363546518795696