Robot‐assisted total hip arthroplasty: Clinical outcomes and complication rate

Abstract

Background The purpose of this study was to report minimum 2‐year outcomes and complications for robotic‐arm‐assisted total hip arthroplasty (THA). Methods Data were prospectively collected and retrospectively reviewed between June 2011 and April 2014. Inclusion criteria were primary robotic‐arm‐assisted THAs treating idiopathic osteoarthritis with ≥ 2‐year follow‐up. Demographics, operating time, complications, 2‐year outcome scores and satisfaction, and subsequent surgeries were recorded. Results There were 181 cases eligible for inclusion, of which 162 (89.5%) had minimum 2‐year follow‐up. At the latest follow‐up, the mean visual analogue scale was 0.7, satisfaction was 9.3, Harris hip score was 91.1 and forgotten joint score was 83.1. Six (3.7%) intraoperative complications and six (3.7%) postoperative complications were reported. No leg length discrepancies (LLDs) or dislocations were reported. Conclusions Robotic‐arm‐assisted THA demonstrates favourable short‐term outcomes and does not result in a higher complication rate compared to non‐robotic THA as reported by the literature.