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      Hip Arthroscopic Surgery for Femoroacetabular Impingement With Capsular Management: Factors Associated With Achieving Clinically Significant Outcomes

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          Abstract

          There has been increasing interest in defining clinically meaningful outcomes in patient reported outcomes following orthopaedic surgery. Little is known about the factors associated with clinically meaningful outcomes after hip arthroscopy for femoroacetabular impingement.

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          Most cited references40

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          A systematic approach to the plain radiographic evaluation of the young adult hip.

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            Psychometric properties of patient-reported outcome measures for hip arthroscopic surgery.

            Patient-reported outcomes (PROs) are considered the gold standard when evaluating outcomes in a surgical population. While the psychometric properties of some PROs have been tested, the properties of newer PROs in patients undergoing hip arthroscopic surgery remain somewhat unknown. To evaluate the reliability, validity, responsiveness, and interpretability of 5 PROs (Copenhagen Hip and Groin Outcome Score [HAGOS], Hip Disability and Osteoarthritis Outcome Score [HOOS], Hip Outcome Score [HOS], International Hip Outcome Tool [iHOT-33], and Modified Harris Hip Score [MHHS]) in a population undergoing hip arthroscopic surgery and also to provide a recommendation of the best PROs in patients undergoing hip arthroscopic surgery. Cohort study (diagnosis); Level of evidence, 2. Study participants were adults (mean age, 37 ± 11 years) who had undergone hip arthroscopic surgery 12 to 24 months previously and pain-free, healthy age-matched controls (mean age, 35 ± 11 years). Baseline characteristics including age, height, weight, waist girth, physical activity, and occupation were collected for both groups. The hip arthroscopic surgery group completed the 5 PRO questionnaires on 3 occasions, while the healthy control group completed the PRO questionnaires on 1 occasion. The reliability (test-retest reliability [intraclass correlation coefficient, or ICC] and minimal detectable change [MDC]), validity (construct validity, ability to detect a difference between groups, acceptability including floor and ceiling effects), responsiveness, and interpretability (minimal important change [MIC]) of each measure were calculated. The test-retest reliability of PROs was excellent (ICC, 0.91-0.97), with an MDC of <20%. The HOOS, HAGOS, and iHOT-33 had acceptable content validity. All PROs demonstrated construct validity and were able to detect a difference between the hip arthroscopic surgery and control groups. No measures demonstrated a floor effect; however, the MHHS and subscales relating to activities of daily living of the HOOS, HOS, and HAGOS demonstrated a ceiling effect. The HOOS, iHOT-33, and MHHS demonstrated adequate responsiveness, and the MIC for all measures was <11 points of a possible 100 points. The PROs of the HOOS and iHOT-33 demonstrate psychometric properties that may enable researchers and clinicians to use them with confidence in a population undergoing hip arthroscopic surgery. The psychometric properties of the MHHS, HOS, and some subscales of the HAGOS are reduced, and these PROs may be less valuable in this group.
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              Outcomes following hip arthroscopy for femoroacetabular impingement with associated chondrolabral dysfunction: minimum two-year follow-up.

              Over an eight-month period we prospectively enrolled 122 patients who underwent arthroscopic surgery of the hip for femoroacetabular impingement and met the inclusion criteria for this study. Patients with bilateral hip arthroscopy, avascular necrosis and previous hip surgery were excluded. Ten patients refused to participate leaving 112 in the study. There were 62 women and 50 men. The mean age of the patients was 40.6 yrs (95% confidence interval (CI) 37.7 to 43.5). At arthroscopy, 23 patients underwent osteoplasty only for cam impingement, three underwent rim trimming only for pincer impingement, and 86 underwent both procedures for mixed-type impingement. The mean follow-up was 2.3 years (2.0 to 2.9). The mean modified Harris hip score (HHS) improved from 58 to 84 (mean difference = 24 (95% CI 19 to 28)) and the median patient satisfaction was 9 (1 to 10). Ten patients underwent total hip replacement at a mean of 16 months (8 to 26) after arthroscopy. The predictors of a better outcome were the pre-operative modified HHS (p = 0.018), joint space narrowing >or= 2 mm (p = 0.005), and repair of labral pathology instead of debridement (p = 0.032). Hip arthroscopy for femoroacetabular impingement, accompanied by suitable rehabilitation, gives a good short-term outcome and high patient satisfaction.
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                Author and article information

                Journal
                The American Journal of Sports Medicine
                Am J Sports Med
                SAGE Publications
                0363-5465
                1552-3365
                March 23 2017
                February 2018
                November 21 2017
                February 2018
                : 46
                : 2
                : 288-296
                Affiliations
                [1 ]Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
                [2 ]Division of Sports Medicine, Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
                [3 ]Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, New York, USA
                [4 ]Houston Methodist Orthopedics and Sports Medicine, Houston, Texas, USA
                [5 ]Duke University Medical Center, Durham, North Carolina, USA
                Article
                10.1177/0363546517739824
                29161115
                5b13df23-45f4-4890-a1b8-35fe9a19b39d
                © 2018

                http://journals.sagepub.com/page/policies/text-and-data-mining-license

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