Agreement and Systematic Differences Between Intraoperative ROSA Hip-Knee-Ankle Measurements and Standing Radiographic Alignment After Robotic-Assisted Total Knee Arthroplasty: A Retrospective Agreement Study

Background/Objectives: Intraoperative robotic hip-knee-ankle angle (HKA) measurements are obtained with the patient supine under operative conditions and may not directly represent postoperative standing weight-bearing alignment. This study quantified the correspondence and systematic differences between intraoperative ROSA HKA and standing radiographic HKA after robotic-assisted total knee arthroplasty.