Endoscopic Repair of Abductor Tendon Tears Results in Variable Patient Reported Outcomes and Generally Good to Excellent Results.

Abductor tendon pathology is fairly common, with up to 25% incidence in patients having total hip arthroplasty and 30% having hip arthroscopy. A systematic review of endoscopic abductor tendon repair demonstrated that as few as 41% of patients with endoscopic repair of abductor tendon tears achieve a patient acceptable satisfactory state (PASS), but a major limitation of systematic reviews is extreme heterogeneity between included studies. Surgical techniques and skills differ, as do tear severity and confounding pathology such as labral tears. Another limitation is a focus on patient reported outcome measures (PROMs). PROMs are important (we prefer happy patients with poor healing to unhappy patients with healed repairs), but PROMs are also "subjective," and different cohorts of patients in different studies from different locations may have different perceptions or goals with regard to pain and function. As surgeons, we are able to observe gait, strength, and with advanced imaging when indicated or for research purposes, healing. These, combined with PROMs, influence overall assessment of outcome. Experience and review of the literature show that endoscopic surgical repair of abductor tendon tears generally shows good or excellent results. If a patient has significant pain improvement, and objectively improved gait, a calculation of an outcome threshold based on a subjective survey may not tell the full story.