• Itay Perets, David E Hartigan, Edwin O Chaharbakhshi, Lyall Ashberg, Brian Mu, and Benjamin G Domb.
• American Hip Institute, Westmont, Illinois, U.S.A.
• Arthroscopy. 2018 Feb 1; 34 (2): 456-463.

PurposeTo compare the minimum 2-year outcomes and return to sports in competitive athletes after arthroscopic iliopsoas fractional lengthening (IFL) and treatment for femoroacetabular impingement (FAI) to competitive athletes treated for FAI who did not undergo IFL.MethodsData were prospectively collected and retrospectively reviewed between November 2009 and April 2014. Included patients were high school, collegiate, or professional athletes who underwent arthroscopic IFL, treatment for FAI, and preoperative modified Harris Hip Score, Non-Arthritic Athletic Hip Score, Hip Outcome Score-Sports Specific Subscale, and visual analog scale. Exclusion criteria were patients younger than 16 years, Tönnis grade >1, microfracture, abductor pathology, and previous hip conditions. A subgroup of athletes were matched to athletes who did not undergo IFL by age ± 5 years, sex, and body mass index ± 5.ResultsThere were 75 athletes eligible for inclusion, 60 (80.0%) of whom had minimum 2-year follow-up. All patient-reported outcome (PRO) scores demonstrated significant improvements at latest follow-up (P < .001). Mean satisfaction was 7.9. No patients converted to arthroplasty. Painful snapping was resolved in 55 athletes (91.7%). Nine athletes (15.0%) had nonpainful snapping at follow-up. Thirty-nine (65%) returned to their sport. Forty (66.7%) maintained or improved their competitive abilities. There was one case (1.6%) of temporary postoperative numbness. There were no complaints of weakness in hip flexion. Forty-one IFL athletes were matched to 41 controls. No differences were detected in demographics, follow-up time, intraoperative findings, procedures, mean magnitudes of improvement, or return to sports.ConclusionsIn competitive athletes, IFL during hip arthroscopy is safe and demonstrates favorable improvements in PROs and VAS, high satisfaction, and high rate of symptom resolution at a minimum of 2 years postoperatively. Most patients were able to return to sports and maintain or improve their competitive levels. These results were similar to a control group of athletes not requiring IFL.Level Of EvidenceLevel III, case-control study.Copyright © 2017 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.

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