Endoscopic Hip Abductor Tendon Repair Results in Successful Outcomes With 5- to 10-Year Follow-up

Abstract

PurposeThe purpose of this study is to report the outcomes of endoscopic repair in a consecutive series of patients with follow-up ranging from five to ten years. MethodsSixty-five consecutive hips in 63 patients (2 bilateral) undergoing endoscopic abductor tendon repair with minimum five-year follow-up were assessed with modified Harris Hip Scores (mHHS). The minimal clinically important difference (MCID) was determined as one half the standard deviation of the amount of improvement. ResultsMean age was 56.6 years (SD 11.3) with 58 females and 5 males. Follow-up was obtained on 64 hips (98.5%) at mean 85 months (SD 15.7). There were 33 full-thickness and 32 partial-thickness tears; 40 gluteus medius tears, 23 medius and minimus tears, and 2 isolated minimus tears. 50 patients (52 hips) underwent concomitant arthroscopy of the hip joint, including 15 with correction of Femoroacetabular Impingement (FAI)). The mean preop mHHS was 48.4 (SD 15.7) and postop 83.4 (SD 15.9); reflecting of 34.9 (95% confidence interval 34.9 ± 4.3) with 92.2% achieving the MCID of 8.7. There were no complications. Three patients underwent further surgery: One underwent total hip replacement at 11 months following abductor repair; one underwent repeat arthroscopy for joint debridement at 12 months following repair; and one underwent revision abductor repair at 6 years postop. ConclusionsCollectively, with 5-10 year follow-up, patients undergoing endoscopic abductor tendon repair can respond exceptionally well, with 92.2% achieving MCID; even among a heterogeneous group of single and two tendon involvement with partial and full thickness tears, undergoing single and double row repair. Level of EvidenceLevel IV, Case Series