ArticleArchives of orthopaedic and trauma surgery2023
Imageless robotic-assisted total knee arthroplasty is accurate in vivo: a retrospective study to measure the postoperative bone resection and alignment.
Article in Archives of orthopaedic and trauma surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- Imageless and image-based robotic-assisted total knee arthroplasty achieve equivalent radiographic accuracy: A randomised controlled trial.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Trial
- Comparison of serum systemic inflammatory biomarkers in bone-milling robotic-assisted total knee arthroplasty and conventional total knee arthroplasty: a prospective randomized controlled trial.Knee surgery & related research · 2026Article
- Comparison of Radiographic and Patient-Reported Outcomes in Robotic-Assisted Versus Manual Total Knee Arthroplasty Using Medial-Congruent Bearing.Journal of clinical medicine · 2026Article
- Accuracy of Robotic Surgical Assistant (ROSA®) Surgical Plan in Total Knee Arthroplasty.Cureus · 2025Article
- Similar clinical and survival outcomes between robotic-assisted cemented and cementless total knee arthroplasty.Archives of orthopaedic and trauma surgery · 2025Article
- External femoral rotation of 2 degrees is associated with the lowest stuffing rates around the femur in functionally aligned TKA.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Article
- Accuracy of ROSA Knee System in Bone Cuts Orientation During Total Knee Arthroplasty: An Observational Study.Journal of clinical medicine · 2025Article
- Improved Efficiency and Intraoperative Planning With 1 Robot-Assisted Total Knee Arthroplasty System.Arthroplasty today · 2025Article
- Sagittal accuracy and functional impact of tibial slope in imageless robotic-assisted Total Knee Arthroplasty.International orthopaedics · 2025Article
- Does robotic surgical assistant (ROSA) functionally aligned TKA lead to higher satisfaction than conventional mechanically aligned TKA: A propensity-matched pair analysis.Journal of orthopaedics · 2025Article
- Handheld imageless robotic total knee arthroplasty improves accuracy and early clinical outcomes when compared with navigation.Arthroplasty (London, England) · 2025Article
- Femoral resection accuracy and precision in manual caliper-verified kinematic alignment total knee arthroplasty.Journal of experimental orthopaedics · 2025Article
- Image-based robotic (ROSAJournal of orthopaedic surgery and research · 2025Article
- Robotics total knee arthroplasty: is an image-based the only solution?Frontiers in surgery · 2025Review
- High in-vivo accuracy of a novel robotic-arm-assisted system for total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Novel application of an imageless robotic system in simultaneous unicompartmental knee arthroplasty and anterior cruciate ligament reconstruction.Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology · 2025Article
- Accuracy and Outcomes of a Novel Cut-Block Positioning Robotic-Arm Assisted System for Total Knee Arthroplasty: A Systematic Review and Meta-Analysis.Arthroplasty today · 2024Article
- Robotic Total Knee Arthroplasty: An Update.Journal of personalized medicine · 2024Review
- Robotic-assisted total knee arthroplasty is not associated with improved accuracy in implant position and alignment compared to conventional instrumentation in the execution of a preoperative digital plan.Journal of experimental orthopaedics · 2024Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeConventional instruments for total knee arthroplasty (TKA) have limited accuracy. The occurrence of outliers can negatively influence the clinical outcome and long-term survival of the implant. Orthopaedic robotic systems were developed to increase the accuracy of implant positioning and bone resections. Several systems requiring preoperative imaging have shown a higher degree of precision compared to conventional instrumentation. An imageless system needs less preoperative time and preparation and is more cost effective. Aim of this study was to find out whether this system is as precise, reproduces accurately the surgeon's planning and reduces the occurrence of outliers.
methodsThis retrospective study included the first 71 robotic-assisted TKA and 308 conventional TKA in 374 patients. Intraoperatively planned and actual bone resections were compared. Postoperative alignment, measured on full leg weight bearing radiographs, was related to the respective planning and statistically compared between the groups.
resultsBaseline characteristics (age, BMI, ASA, preoperative Knee Society Score and deformity) between both groups were comparable. According to the planned alignment, the postoperative mean difference was - 1.01° in the robotic versus 2.05° in the conventional group. The maximum deviation was - 2/+ 2.5° in the robotic and - 6.6/ + 6.8° in the conventional group. According to the plan, there were no outliers above ± 3° in the robotic versus 24% in the conventional group. The mean difference between planned and measured bone resection was 0.21 mm with a maximum of 2 mm. The 95% confidence interval was at each position 1 mm or below.
conclusionsThe described imageless robotic system is accurate in terms of coronal alignment and bone resections. In precision, it is superior to conventional instrumentation and could therefore be used to evaluate new alignment concepts.
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