• David E Hartigan, Itay Perets, Mary R Close, John P Walsh, Edwin O Chaharbakhshi, Mitchell R Mohr, and Benjamin G Domb.
• Mayo Clinic Arizona, Phoenix, Arizona, U.S.A.
• Arthroscopy. 2018 Jun 1; 34 (6): 1841-1850.

PurposeThe purpose of this study was to evaluate the greater than 2-year patient-reported outcomes (PROs) and patient satisfaction of patients who were treated with hip arthroscopy for snapping iliopsoas tendons that were painful with concomitant acetabular dysplasia and who underwent iliopsoas lengthening for symptomatic iliopsoas tendon snapping with concomitant capsular plication and treatment of hip impingement. Secondary measures included observation of the change in the Tönnis grade at greater than 2 years' follow-up.MethodsBetween July 2009 and December 2011, data on patients with a lateral center-edge angle (LCEA) of less than 25° (range, 19°-24°) who underwent hip arthroscopy with central-compartment iliopsoas fractional lengthening and capsular plication were prospectively collected and retrospectively reviewed. Interportal capsular repair was performed using between 2 and 5 simple sutures. Patients also underwent procedures to treat hip impingement pathology. All patients had preoperative and minimum 2-year postoperative PRO measures: modified Harris Hip Score, Hip Outcome Score-Activities of Daily Living subscale, Hip Outcome Score-Sports-Specific subscale, and Non-arthritic Hip Score. The visual analog scale score and patient satisfaction with surgery (from 0 to 10) were also collected. Radiographs were analyzed preoperatively and at latest follow-up to assess progression of the Tönnis grade.ResultsWe analyzed 32 patients who met the inclusion criteria (30 female and 2 male patients; mean age, 25 years). The mean LCEA and anterior center-edge angle were 21.6° and 25.5°, respectively. Four patients required revision arthroscopy for labral retears. Among the 28 patients who did not undergo revision surgery, the modified Harris Hip Score, Hip Outcome Score-Activities of Daily Living subscale, Hip Outcome Score-Sports-Specific subscale, and Non-arthritic Hip Score improved from 68.7 to 83.5, from 64.9 to 86.6, from 71.6 to 86.7, and from 52.6 to 75.8, respectively (P < .001). The visual analog scale score improved from 5.6 preoperatively to 1.9 at latest follow-up (P < .001). The mean patient satisfaction rating was 8.0. There was no radiographic progression of the Tönnis grade at final follow-up.ConclusionsThis study showed that patients with an LCEA of less than 25° and associated painful iliopsoas snapping can be treated by addressing concomitant pathology and performing central-compartment fractional lengthening of the iliopsoas tendon with concomitant capsular plication and have high satisfaction, improvement in PROs, and improved pain scores, without significant progression of osteoarthritis.Level Of EvidenceLevel IV, case series.Copyright © 2018 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.

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