ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2024
The ROSA knee robotic system demonstrates superior precision in restoring joint line height and posterior condylar offset compared to conventional manual TKA: a retrospective case-control study.
Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Improved surgical accuracy in total knee arthroplasty using the ROSA® knee system: A randomised-controlled unblinded trial.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Trial
- Robotic-Arm-Assisted Versus Manual Total Knee Arthroplasty: A Comparative Cohort Study of Gait and Postural Outcomes.Journal of personalized medicine · 2026Article
- Early outcomes and the learning curve of two domestically produced surgical robot systems with different operational philosophies for total knee arthroplasty.Journal of robotic surgery · 2026Article
- Imageless robotic-assisted system is associated to effective restoration of the joint line and posterior condylar offset in revision total knee arthroplasty.Archives of orthopaedic and trauma surgery · 2025Article
- Robotics total knee arthroplasty: is an image-based the only solution?Frontiers in surgery · 2025Review
- Accuracy of the Imageless Mode of the ROSA Robotic System for Targeted Resection Thickness in Total Knee Arthroplasty: A Prospective, Single Surgeon Case-Series Study.The international journal of medical robotics + computer assisted surgery : MRCAS · 2024Article
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5 authors.
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Abstract
purposeVariations in total knee arthroplasty (TKA) joint line height may lead to complications such as pain and altered joint mechanics, while posterior condylar offset (PCO) can influence knee stability.
methodsSingle-centre, single-surgeon retrospective analysis from December 2019 to May 2023 investigated primary unilateral TKA (Nexgen Legacy, Zimmer Biomet) in patients with knee osteoarthritis, using ROSA robotic system (raTKA) or conventional manual technique (mTKA). Joint line height and PCO were measured and compared in 182 raTKA and 144 mTKA patients.
resultsThe groups were matched in age (p = 0.847) and sex distribution (p = 0.2). Excellent interobserver agreement (ICC ≥ 0.9). RaTKA mean joint line height difference was - 0.0001 mm (± 3.48, 95% CI - 0.509, 0.509) (p = 0.523), - 0.951 mm for mTKA (± 4.33, 95% CI - 1.664, - 0.237) (p = 0.009). RaTKA mean PCO difference was 0.52 mm (± 2.45, 95% CI 0.160, 0.880) (p = 0.005), 1.15 mm for mTKA (± 4.01, 95% CI - 1.496, 1.818) (p < 0.001). Mean difference in joint line height of 0.95 mm between groups was significant (p = 0.027), and for PCO, it was 0.63 mm, demonstrating tendency towards significance (p = 0.08). Mean absolute value in joint line height difference between groups was not significant (p = 0.235) but highly significant for PCO (p < 0.001).
conclusionThe ROSA knee robotic system can more accurately restore joint line height and PCO compared to conventional manual TKA. The improved degree of precision raTKA offers may be a vehicle for better Patient-Reported Outcome Measures, but further correlational studies are required.
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