CT-Based Planning for Robotic Arm-Assisted Vs Conventional Total Hip Arthroplasty .
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A prospective randomized controlled trial comparing CT-based planning with conventional total hip arthroplasty versus robotic arm-assisted total hip arthroplasty.
Bone Joint J . 2024 Apr 1;106-B(4):324-335.Sixty patients with symptomatic hip osteoarthritis were randomized to receive either robotic arm-assisted total hip arthroplasty (n=30) or conventional total hip arthroplasty (n=30). The primary outcome of interest was the accuracy in restoring the center of hip rotation (COR). Secondary outcomes included acetabular component orientation, leg length discrepancy, combined offset, and patient-reported outcome measures (PROMs). Outcomes were assessed at six weeks post-surgery and at one year. Overall, the study revealed that robotic arm-assisted THA was significantly more accurate in restoring the horizontal and vertical COR compared to conventional THA, with fewer outliers in acetabular component positioning and leg length correction. The findings suggest that robotic assistance improves technical precision in THA, potentially enhancing long-term outcomes.
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