• Itay Perets, Edwin O Chaharbakhshi, Yosif Mansor, Lyall J Ashberg, Brian H Mu, Muriel R Battaglia, Ajay C Lall, and Benjamin G Domb.
• American Hip Institute, Westmont, Illinois, U.S.A.; Hadassah Hebrew University Hospital, Jerusalem, Israel.
• Arthroscopy. 2019 May 1; 35 (5): 1432-1440.

PurposeTo report minimum 5-year outcomes and rate of painful snapping resolution for patients who underwent iliopsoas fractional lengthening (IFL) as a part of hip arthroscopy for femoroacetabular impingement (FAI) and labral tear. In addition, to match this group to a group of patients who underwent hip arthroscopy for FAI and labral tear without internal snapping.MethodsPatients were eligible for inclusion if they underwent hip arthroscopy for treatment of FAI and labral tear with concomitant IFL for painful snapping and had preoperative baseline scores for modified Harris Hip Score, Nonarthritic Hip Score, Hip Outcome Score-Sports Subscale, and visual analog scale for pain. The exclusion criteria for this study were preoperative Tönnis grade >0, active workers' compensation claims, or previous ipsilateral hip conditions. These patients were matched to a control group of patients who did not have snapping or undergo IFL but who otherwise satisfied the same inclusion and exclusion criteria.ResultsThere were 57 eligible cases (80.3% follow-up). Mean follow-up time was 69.3 months (from 60.0 to 91.9). All patient-reported outcomes measures demonstrated statistically significant improvements between preoperative and latest follow-up scores for the following measures (P < .001): modified Harris Hip Score (from 64.3 to 84.9), Nonarthritic Hip Score (from 61.7 to 85.2), Hip Outcome Score-Sports Subscale (from 47.0 to 75.0), and visual analog scale (from 6.5 to 2.2). Mean satisfaction was 8.1 out of 10. Painful snapping was resolved in 80.7% of cases. Ten hips (17.5%) required secondary arthroscopy at a mean of 30.5 months. Three hips (5.3%) required total hip arthroplasty at a mean of 57.5 months. One case (1.8%) had minor postoperative complications. There were no statistically significant differences between the groups in outcomes, complications, and secondary surgeries.ConclusionsIFL as part of hip arthroscopy for treatment of FAI and labral tears demonstrated similar favorable improvement, complication rates, and secondary surgeries, when compared with a control group that did not undergo IFL.Level Of EvidenceLevel III, retrospective comparative study.Copyright © 2019 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.

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