Gluteus Repair Yields Satisfactory Clinically Significant Outcome Achievement By One Year in Mostly Partial-Thickness Tears with Preoperative Hip Abduction Weakness Associated with Delayed Achievement.

The purposes of this study were (1) to define the time to achievement of clinically significant outcomes (CSOs) following primary gluteus medius and/or minimus (GM) repair and (2) to identify factors associated with delayed CSO achievement. Patients who underwent primary GM repair between January 2012 and June 2021 with complete preoperative, 6-month, 1-year, and 2-year Hip Outcome Score - Activities of Daily Living (HOS-ADL) were retrospectively identified. Cohort-specific minimal clinically important difference (MCID) and patient acceptable symptom state (PASS) were calculated. The time to achievement of MCID and PASS were analyzed using Kaplan-Meier survival analysis. Median time to MCID and PASS achievement were recorded. Multivariate stepwise cox regressions were used to identify factors associated with delayed CSO achievement. Fifty GM repairs were identified (age 59.4 ± 9.7 years, BMI 27.9 ± 6.2 kg/m This study demonstrated that in patients undergoing repair of primarily Grade 1 GM tears, most achieved MCID by 6 months and over half achieved PASS by 12 months. Preoperative hip abduction weakness on physical exam was associated with delayed CSO achievement. Retrospective Case Series, IV.

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