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Long-Term Outcomes of Primary Hip Arthroscopy With Labral Repair for Femoroacetabular Impingement: Results at Minimum 9-Year Follow-up.

BACKGROUND: Hip arthroscopy continues to advance and become increasingly commonly performed. With the evolution of techniques and instrumentation, labral repair rather than debridement has emerged as the treatment of choice for labral pathology. There remains a lack of data on long-term outcomes after labral repair.

PURPOSE: To (1) evaluate long-term patient-reported outcomes of primary hip arthroscopy with labral repair for femoroacetabular impingement, (2) report achievement rates of Patient Acceptable Symptom State (PASS) and minimal clinically important difference (MCID), and (3) investigate rates of reoperation and progression to total hip arthroplasty (THA).

STUDY DESIGN: Case series; Level of evidence, 4.

METHODS: Prospectively collected data were reviewed for patients who underwent primary hip arthroscopy with labral repair between 2010 and 2013. Patients' medical records were reviewed for demographic characteristics, intraoperative findings, reoperation, and progression to THA. Patients were assessed pre- and postoperatively using the following scales: visual analog scale (VAS) for pain; Tegner activity scale; modified Harris Hip Score (mHHS); 12-item International Hip Outcome Tool (iHOT-12); Hip Outcome Score-Activities of Daily Living (HOS-ADL); HOS-Sport-Specific Subscale (HOS-SSS); and Non-Arthritic Hip Score. Patients were also surveyed for satisfaction, subjective improvement, and level of function.

RESULTS: A total of 32 patients (n = 24 women; n = 8 men) with a mean age of 27.7 years (range, 13.6-51 years) were evaluated for a mean of 9.4 years (range, 9-12.1 years). Patients achieved significant mean improvements in VAS pain at rest of 2 points, VAS pain with use of 1.9, mHHS of 19.9 points, iHOT-12 of 33.5 points, HOS-ADL of 17.4 points, and HOS-SSS of 29.5 points ( P ≤ .015 for all). Eleven patients (34.4%) underwent reoperation and 4 (12.5%) progressed to THA during the study period. At the final follow-up, the MCID achievement rate was ≥68%, the PASS achievement rates ranged from 39% to 65%, and the mean patient satisfaction was 8.1 on a 1 to 10 scale, with 10 denoting most satisfied.

CONCLUSION: Patients demonstrated significant postoperative improvements in pain, mHHS, iHOT-12, HOS-ADL, and HOS-SSS scores at 9 years postoperatively. The all-cause reoperation rate was 34.4%, and 12.5% of patients progressed to THA.

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