PMID- 30612776 OWN - NLM STAT- MEDLINE DCOM- 20200129 LR - 20200129 IS - 1526-3231 (Electronic) IS - 0749-8063 (Linking) VI - 35 IP - 2 DP - 2019 Feb TI - Minimal Clinically Important Difference and Substantial Clinical Benefit Values for the 12-Item International Hip Outcome Tool. PG - 411-416 LID - S0749-8063(18)30850-8 [pii] LID - 10.1016/j.arthro.2018.09.028 [doi] AB - PURPOSE: To define minimal clinically important difference (MCID) and substantial clinical benefit (SCB) values for the 12-item International Hip Outcome Tool (iHOT-12) in patients undergoing hip arthroscopy for intra-articular pathology. METHODS: This was a retrospective review of prospectively collected data on patients who underwent hip arthroscopy. On initial assessment and follow-up between 335 and 395 days after surgery, subjects completed the iHOT-12 and a categorical self-rating of function (severely abnormal, abnormal, nearly normal, or normal). One-half the standard deviation (SD) of the change in 1-year iHOT-12 scores was used to calculate the MCID. Receiver operator characteristic analysis was performed to determine SCB values. A change in SCB value was determined based on an improvement in the categorical rating of function. Absolute postoperative SCB scores were calculated to determine scores that would be associated with normal function ratings or with abnormal or severely abnormal function ratings. RESULTS: Of 1,034 eligible patients, 733 (71%) met the inclusion criteria. The subjects consisted of 537 female patients (73%) and 196 male patients (27%), with a mean age of 35.3 years (SD, 13 years). At a mean of 352 days (SD, 21 days) after surgery, 536 patients (73%) were in the "improved" group and 197 (27%) were in the "not improved" group. The MCID was 13 points. An SCB change score of 28 points was able to identify patients who improved with high sensitivity (0.79) and specificity (0.72). Scores of 86 points or greater and 56 points or less were the cutoff values found to identify subjects who rated their function as normal and abnormal, respectively, with high sensitivity (0.74 and 0.90, respectively) and specificity (0.82 and 0.86, respectively). CONCLUSIONS: This study provides information to help interpret iHOT-12 scores for a follow-up period ranging between 335 and 395 days with MCID and SCB values of 13 and 28 points, respectively. In addition, a vpatient who scored 86 points or better was likely to have a normal rating of function, whereas a patient with a score of 56 points or less was likely to have an abnormal rating of function. LEVEL OF EVIDENCE: Level III, retrospective comparative study. CI - Copyright (c) 2019 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved. FAU - Martin, RobRoy L AU - Martin RL AD - Department of Physical Therapy, Rangos School of Health Sciences, Duquesne University, Pittsburgh, Pennsylvania, U.S.A.; University of Pittsburgh Medical Center, Center for Sports Medicine, Pittsburgh, Pennsylvania, U.S.A.. Electronic address: martinr280@duq.edu. FAU - Kivlan, Benjamin R AU - Kivlan BR AD - Department of Physical Therapy, Rangos School of Health Sciences, Duquesne University, Pittsburgh, Pennsylvania, U.S.A. FAU - Christoforetti, John J AU - Christoforetti JJ AD - Center for Athletic Hip Injury, Allegheny Health Network, Pittsburgh, Pennsylvania, U.S.A.; Department of Orthopaedic Surgery, Drexel University School of Medicine, Philadelphia, Pennsylvania, U.S.A.; American Hip Institute, Pittsburgh, Pennsylvania, U.S.A. FAU - Wolff, Andrew B AU - Wolff AB AD - Hip Preservation and Sports Medicine, Washington Orthopaedics and Sports Medicine, Chicago, Illinois, U.S.A. FAU - Nho, Shane J AU - Nho SJ AD - Department of Orthopedic Surgery, Division of Sports Medicine, Hip Preservation Center, Rush University Medical Center, Chicago, Illinois, U.S.A. FAU - Salvo, John P Jr AU - Salvo JP Jr AD - Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, U.S.A.; Hip Arthroscopy Program, Rothman Institute, Philadelphia, Pennsylvania, U.S.A. FAU - Ellis, Thomas J AU - Ellis TJ AD - Orthopedic One, Ohio Orthopedic Surgery Institute, Dublin Methodist Hospital, Columbus, Ohio, U.S.A. FAU - Van Thiel, Geoff AU - Van Thiel G AD - OrthoIllinois, Chicago, Illinois, U.S.A.; Rush University Medical Center, Chicago, Illinois, U.S.A.; US National Soccer Teams, Chicago, Illinois, U.S.A.; Chicago Blackhawks Medical Network, Chicago, Illinois, U.S.A. FAU - Matsuda, Dean K AU - Matsuda DK AD - Hip Arthroscopy DISC Sports and Spine Center, Marina del Rey, California, U.S.A. FAU - Carreira, Dominic S AU - Carreira DS AD - Peachtree Orthopedics, Atlanta, Georgia, U.S.A. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190104 PL - United States TA - Arthroscopy JT - Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association JID - 8506498 SB - IM CIN - Arthroscopy. 2019 Feb;35(2):417-418. PMID: 30712621 MH - Adult MH - Arthroscopy MH - Female MH - Hip Joint/*surgery MH - Humans MH - Male MH - *Minimal Clinically Important Difference MH - *Patient Reported Outcome Measures MH - Retrospective Studies MH - Sensitivity and Specificity EDAT- 2019/01/08 06:00 MHDA- 2020/01/30 06:00 CRDT- 2019/01/08 06:00 PHST- 2018/06/04 00:00 [received] PHST- 2018/09/06 00:00 [revised] PHST- 2018/09/07 00:00 [accepted] PHST- 2019/01/08 06:00 [pubmed] PHST- 2020/01/30 06:00 [medline] PHST- 2019/01/08 06:00 [entrez] AID - S0749-8063(18)30850-8 [pii] AID - 10.1016/j.arthro.2018.09.028 [doi] PST - ppublish SO - Arthroscopy. 2019 Feb;35(2):411-416. doi: 10.1016/j.arthro.2018.09.028. Epub 2019 Jan 4.