Postoperative Outcomes for Total Hip Arthroplasty with And Without Simultaneous Hip Abductor Repair: A Matched Pair Analysis
Abstract
Ryan S. Selley, Spencer W. Sullivan, Sophia J. Madjarova, Joost A. Burger, Anil S. Ranawat, Amar S. Ranawat, Peter K. Sculco, Danyal H. Nawabi and Benedict U. Nwachukwu
Purpose: The purpose of this study was to compare outcomes and improvement in self-reported functional status between patients undergoing total hip arthroplasty (THA) with abductor repair (AR) to a matched cohort of patients undergoing isolated THA.
Methods: A retrospective review of prospectively collected data was performed of patients who had undergone THA with abductor repair at a single institution. Ten patients were identified as having undergone both THA + AR, and they were matched in a 1:2 ratio with patients who had undergone THA alone. Patients were contacted at a minimum of 18 months after surgery and the following outcomes measures were obtained: the hip outcome score – activities of daily living and HOS ADL+SS (HOS-ADL, HOS), international hip outcome tool -12 (iHOT-12) and the patient’s self-reported change in pre- and post-surgical functional status.
Results: Patients undergoing THA+AR had significantly worse self-reported outcomes as measured by HOS, HOS- ADL and iHOT-12 (P < .05). All of the patients in the THA cohort reported being “Much Improved” or “Improved” compared to 80% of patients in the THA+AR cohort.
Conclusions: Patients undergoing THA with concomitant abductor repair demonstrated significantly worse post- operative outcomes than a matched THA alone cohort. These findings indicate that abductor pathology is a risk factor for inferior outcomes irrespective of repair in the setting of THA.
Level of Evidence: Level III, retrospective cohort study