PMID- 32167843 OWN - NLM STAT- MEDLINE DCOM- 20201103 LR - 20201103 IS - 1552-3365 (Electronic) IS - 0363-5465 (Linking) VI - 48 IP - 4 DP - 2020 Mar TI - Defining the Clinically Meaningful Outcomes for Arthroscopic Treatment of Femoroacetabular Impingement Syndrome at Minimum 5-Year Follow-up. PG - 901-907 LID - 10.1177/0363546520902736 [doi] AB - BACKGROUND: Minimal clinically important difference (MCID), substantial clinical benefit (SCB), and patient acceptable symptomatic state (PASS) have gained prominence as important variables in the orthopaedic outcomes literature. In hip preservation surgery, much attention has been given to defining early clinically meaningful outcome; however, it is unknown what represents meaningful patient-reported outcome improvement in the medium to long term. PURPOSE: (1) To define MCID, PASS, and SCB at a minimum 5 years after hip arthroscopy for femoroacetabular impingement syndrome (FAIS) and (2) to evaluate the time-dependent nature of MCID, PASS, and SCB. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Patients undergoing primary hip arthroscopy for FAIS between January 2012 and March 2014 were included. Clinical and demographic data were collected in an institutional hip preservation registry. MCID, PASS, and SCB were calculated for each outcome score including the Hip Outcome Score-Activities of Daily Living subscale (HOS-ADL), Hip Outcome Score-Sport-Specific subscale (HOS-SS), modified Harris Hip Score (mHHS), and International Hip Outcome Tool (iHOT-12) at 1, 2, and 5 years. MCID was calculated by use of a distribution-based method, whereas PASS and SCB were calculated by use of an anchor method. RESULTS: The study included 283 patients with a mean +/- SD age of 34.2 +/- 11.9 years. The mean changes in 1-year, 2-year, and 5-year scores, respectively, required to achieve MCID were as follows: HOS-ADL (8.8, 9.7, 10.2); HOS-SS (13.9, 14.3, 15.2); mHHS (6.9, 9.2, 11.4); and iHOT-12 (15.1, 13.9, 15.1). The threshold scores for achieving PASS were as follows: HOS-ADL (89.7, 88.2, 99.2); HOS-SS (72.2, 76.4, 80.9); mHHS (84.8, 83.3, 83.6); and iHOT-12 (69.1, 72.2, 74.3). Last, the threshold scores for achieving SCB scores were as follows: HOS-ADL (89.7, 91.9, 94.6); HOS-SS (78.1, 77.9, 85.8); mHHS (86.9, 85.8, 94.4); and iHOT-12 (72.6, 76.8, 87.5). More patients achieved MCID, SCB, and PASS at 2-year compared with 1-year follow-up; however, by 5 years, fewer patients had achieved clinically meaningful outcome (minimum 1-, 2-, and 5-year follow-up, respectively: MCID, 82.6%, 87.3%, 79.3%; PASS, 67.6%, 74.9%, 67.5%; SCB, 62.3%, 67.2%, 56.6%). CONCLUSION: The greatest proportion of patients achieved MCID, PASS, and SCB at 2-year follow-up after arthroscopic treatment of FAIS compared with 1- and 5-year time points. Improvements were maintained out to 5-year follow-up, although the proportion of patients achieving clinical significance was slightly decreased. FAU - Nwachukwu, Benedict U AU - Nwachukwu BU AD - Division of Sports Medicine, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA. FAU - Beck, Edward C AU - Beck EC AD - Division of Sports Medicine, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA. FAU - Kunze, Kyle N AU - Kunze KN AD - Division of Sports Medicine, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA. FAU - Chahla, Jorge AU - Chahla J AD - Division of Sports Medicine, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA. FAU - Rasio, Jonathan AU - Rasio J AD - Division of Sports Medicine, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA. FAU - Nho, Shane J AU - Nho SJ AD - Division of Sports Medicine, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA. LA - eng PT - Journal Article PL - United States TA - Am J Sports Med JT - The American journal of sports medicine JID - 7609541 SB - IM MH - *Activities of Daily Living MH - *Arthroscopy MH - *Femoracetabular Impingement/surgery MH - Follow-Up Studies MH - Hip Joint/surgery MH - Humans MH - Minimal Clinically Important Difference MH - Treatment Outcome OTO - NOTNLM OT - 5-year follow-up OT - MCID OT - PASS OT - SCB OT - femoroacetabular impingement syndrome EDAT- 2020/03/14 06:00 MHDA- 2020/11/04 06:00 CRDT- 2020/03/14 06:00 PHST- 2020/03/14 06:00 [entrez] PHST- 2020/03/14 06:00 [pubmed] PHST- 2020/11/04 06:00 [medline] AID - 10.1177/0363546520902736 [doi] PST - ppublish SO - Am J Sports Med. 2020 Mar;48(4):901-907. doi: 10.1177/0363546520902736.