ArticleJournal of orthopaedic surgery and research2024
Evaluating the accuracy of a new robotically assisted system in cadaveric total knee arthroplasty procedures.
Article in Journal of orthopaedic surgery and research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Limited Accuracy of Tibial Stylus Measurements in Conventional Total Knee Arthroplasty.Journal of clinical medicine · 2026Article
- High accuracy and learning curve improvement of augmented reality in total knee arthroplasty: A single-centre study on 157 patients.Journal of experimental orthopaedics · 2025Article
- Femoral resection accuracy and precision in manual caliper-verified kinematic alignment total knee arthroplasty.Journal of experimental orthopaedics · 2025Article
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Authors and funding
6 authors.
Funding
Abstract
backgroundRobot-assisted total knee arthroplasty (TKA) has been shown to facilitate high-precision bone resection, which is an important goal in TKA. The aim of this cadaveric study was to analyze the accuracy of the target angle and bone resection thickness of a recently introduced robotic TKA system.
methodsThis study used 4 frozen cadaveric specimens (8 knees), 2 different implant designs, navigation, and a robotic system. The 4 surgeons who participated in this study were trained and familiar with the basic principles and operating procedures of this system. The angle of the bone cuts performed using the robotic system was compared with the target angles from the intraoperative plan. For each bone cut, the resection thickness was recorded and compared with the planned resection thickness.
resultsThe mean angular difference for all specimens was less than 1°, and the standard deviation was less than 2°. The mean difference between the planned and measured angles was close to 0 and not significantly different from 0 except for the difference in the frontal tibial component angle, which was 0.88°. The mean difference in the hip-knee-ankle axis angle was - 0.21°± 1.06°. The mean bone resection difference for all specimens was less than 1 mm, and the standard deviation was less than 0.5 mm.
conclusionsThe results of the cadaveric experimental study showed that the new TKA system can realize highly accurate bone cuts and achieve planned angles and resection thicknesses. Despite the limitations of small sample sizes and large differences between cadaveric and clinical patients, the accuracy of cadaveric experiments provides strong support for subsequent clinical trials.
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