PMID- 30226992 OWN - NLM STAT- MEDLINE DCOM- 20191023 LR - 20191023 IS - 1552-3365 (Electronic) IS - 0363-5465 (Linking) VI - 46 IP - 13 DP - 2018 Nov TI - When Do Patients Improve After Hip Arthroscopy for Femoroacetabular Impingement? A Prospective Cohort Analysis. PG - 3111-3118 LID - 10.1177/0363546518795696 [doi] AB - BACKGROUND: 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). HYPOTHESIS/PURPOSE: 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. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: 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. RESULTS: 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-Quality 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. CONCLUSION: 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. FAU - Flores, Sergio E AU - Flores SE AD - Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California, USA. FAU - Sheridan, Joseph R AU - Sheridan JR AD - Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California, USA. FAU - Borak, Kristina R AU - Borak KR AD - Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California, USA. FAU - Zhang, Alan L AU - Zhang AL AD - Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California, USA. LA - eng PT - Journal Article DEP - 20180918 PL - United States TA - Am J Sports Med JT - The American journal of sports medicine JID - 7609541 SB - IM MH - Adult MH - Arthroscopy/*rehabilitation/statistics & numerical data MH - Cohort Studies MH - Female MH - Femoracetabular Impingement/*surgery MH - Hip Joint/surgery MH - Humans MH - Male MH - Middle Aged MH - *Minimal Clinically Important Difference MH - Pain MH - *Patient Reported Outcome Measures MH - Prospective Studies MH - Quality of Life MH - Sports MH - Time Factors MH - Treatment Outcome OTO - NOTNLM OT - femoroacetabular impingement (FAI) OT - hip arthroscopy OT - minimal clinically important difference (MCID) OT - patient outcomes OT - rate of improvement EDAT- 2018/09/19 06:00 MHDA- 2019/10/24 06:00 CRDT- 2018/09/19 06:00 PHST- 2018/09/19 06:00 [pubmed] PHST- 2019/10/24 06:00 [medline] PHST- 2018/09/19 06:00 [entrez] AID - 10.1177/0363546518795696 [doi] PST - ppublish SO - Am J Sports Med. 2018 Nov;46(13):3111-3118. doi: 10.1177/0363546518795696. Epub 2018 Sep 18.