Validation of the Accuracy of Robotic Arm-Assisted Total Hip Arthroplasty After Rotational Acetabular Osteotomy: A Propensity-Matched Controlled Study

Background

Robot-assisted total hip arthroplasty (THA) improves the accuracy of implant placement. However, acetabular cup positioning in patients with a history of pelvic osteotomy remains technically demanding, and the benefit of robotic assistance in such cases has not been established. This study aimed to evaluate the accuracy of acetabular cup placement using robot-assisted THA in patients who previously underwent rotational acetabular osteotomy (RAO), a type of pelvic osteotomy performed for hip dysplasia.