PMID- 33718501 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220421 IS - 2325-9671 (Print) IS - 2325-9671 (Electronic) IS - 2325-9671 (Linking) VI - 9 IP - 2 DP - 2021 Feb TI - Defining the Clinically Meaningful Outcomes for Arthroscopic Treatment of Femoroacetabular Impingement Syndrome at Minimum 10-Year Follow-up: The Timing of Surgery Is Crucial. PG - 2325967120985140 LID - 10.1177/2325967120985140 [doi] LID - 2325967120985140 AB - BACKGROUND: Arthroscopic treatment of femoroacetabular impingement syndrome (FAIS) has become a common procedure. However, meaningful long-term clinical outcomes have not been defined. PURPOSE: To define the minimal clinically important difference (MCID), substantial clinical benefit (SCB), and patient acceptable symptomatic state (PASS) for the modified Harris Hip Score (mHHS) at a minimum 10-year follow-up in patients undergoing arthroscopic treatment for FAIS and identify preoperative predictors for achievement of the MCID, SCB, and PASS. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: A consecutive series of patients undergoing arthroscopic treatment for FAIS between 2007 and 2009 with a minimum 10-year follow-up was analyzed. Patient data included patient characteristics, radiographic parameters, and the pre- and postoperative mHHS and visual analog scale (VAS) for pain score. Paired t tests were used to compare the patient-reported outcome measures (PROMs). The MCID was determined by calculating half of the standard deviation, and SCB and PASS were calculated by the anchor method. Correlation and logistic regression analyses were conducted to identify predictors for the achievement of the MCID, SCB, and PASS. RESULTS: A total of 44 patients (27 men, 17 women) were included. The mean age and body mass index were 42.2 years (range, 16-67 years) and 22.3 kg/m(2) (range, 16.76-29.78 kg/m(2)), respectively. The MCID, absolute SCB, net change SCB, and PASS of the mHHS were calculated to be 19.6, 90.1, 31.5, and 84.4 points, respectively. Preoperative symptom duration was identified as an independent predictor for the achievement of meaningful clinical outcomes. The median symptom durations for patients who achieved the MCID, absolute SCB, net change SCB, and PASS were 11.7, 9.1, 9.0, and 10.8 months, respectively. The median symptom duration for patients who did not achieve the MCID, absolute SCB, net change SCB, and PASS were 15.8, 17.4, 17.3, and 18.4 months, respectively. No other statistically significant correlations were found. CONCLUSION: The preoperative duration of symptoms was identified as an independent predictor for achievement of the MCID, SCB, and PASS. These findings can be helpful in accelerating the transition to surgical treatment of FAIS. CI - (c) The Author(s) 2021. FAU - Zimmerer, Alexander AU - Zimmerer A AD - ARCUS Sportklinik Pforzheim, Germany. AD - Department of Orthopaedics, University Medicine Greifswald, Greifswald, Germany. FAU - Janz, Viktor AU - Janz V AD - Department of Orthopaedics, University Medicine Greifswald, Greifswald, Germany. FAU - Sobau, Christian AU - Sobau C AD - ARCUS Sportklinik Pforzheim, Germany. FAU - Wassilew, Georgi I AU - Wassilew GI AD - Department of Orthopaedics, University Medicine Greifswald, Greifswald, Germany. FAU - Miehlke, Wolfgang AU - Miehlke W AD - ARCUS Sportklinik Pforzheim, Germany. LA - eng PT - Journal Article DEP - 20210225 PL - United States TA - Orthop J Sports Med JT - Orthopaedic journal of sports medicine JID - 101620522 PMC - PMC7922622 OTO - NOTNLM OT - 10-year follow-up OT - MCID OT - PASS OT - SCB OT - femoroacetabular impingement syndrome COIS- One or more of the authors has declared the following potential conflict of interest or source of funding: W.M. has received personal fees from Arthrex and Richard Wolf. AOSSM checks author disclosures against the Open Payments Database (OPD). AOSSM has not conducted an independent investigation on the OPD and disclaims any liability or responsibility relating thereto. EDAT- 2021/03/16 06:00 MHDA- 2021/03/16 06:01 PMCR- 2021/02/25 CRDT- 2021/03/15 07:09 PHST- 2020/08/27 00:00 [received] PHST- 2020/09/21 00:00 [accepted] PHST- 2021/03/15 07:09 [entrez] PHST- 2021/03/16 06:00 [pubmed] PHST- 2021/03/16 06:01 [medline] PHST- 2021/02/25 00:00 [pmc-release] AID - 10.1177_2325967120985140 [pii] AID - 10.1177/2325967120985140 [doi] PST - epublish SO - Orthop J Sports Med. 2021 Feb 25;9(2):2325967120985140. doi: 10.1177/2325967120985140. eCollection 2021 Feb.