ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2023
Robotic-arm assisted unicompartmental knee arthroplasty system has a learning curve of 11 cases and increased operating time.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Platform-Specific Learning Curves in Robotic-Assisted Total Knee Arthroplasty: A Systematic Review.Orthopaedic surgery · 2026Pooled it
- Substantial improvement in short-term survivorship in patients receiving robotic arm-assisted medial unicompartmental knee arthroplasty : a retrospective cohort study.Bone & joint open · 2026Article
- Patient-Specific Instrumentation Improves Technical Execution Accuracy After Artificial Intelligence-Assisted Preoperative Planning in Medial Unicompartmental Knee Arthroplasty.International orthopaedics · 2026Article
- Surgical treatment of varus unicompartmental knee osteoarthritis: indications, trends, and outcomes-a narrative review.Archives of orthopaedic and trauma surgery · 2026Review
- Does Resident Rotation Affect the Learning Curve of Active Robotic TKA? A Study of Surgical Efficiency and Radiographic Precision.Medicina (Kaunas, Lithuania) · 2026Article
- Comparative analysis of revision causes between robotic-assisted and conventional manual unicompartmental knee arthroplasty: a systematic review and meta-analysis.Knee surgery & related research · 2026Review
- Learning curve of robotic arm-assisted versus manual unicompartmental knee arthroplasty : accuracy, theatre time, complications, patient-reported outcome measures, and implant survival.Bone & joint open · 2026Article
- Revision of Unicompartmental Knee Arthroplasty to Total Knee Arthroplasty Using the CORISICOT-J · 2026Article
- Optimizing uni-compartmental knee arthroplasty: the impact of preoperative planning and arithmetic hip-knee-ankle angle.BMC musculoskeletal disorders · 2025Article
- The Novel Navigation-Assisted Surgery Increases Financial Burden of Patients Suffering Tile Types B and C Pelvic Fractures in China.BioMed research international · 2025Article
- Robotic-assisted unicompartmental knee arthroplasty: historical perspectives and current innovations.Biomedical engineering letters · 2023Review
- Learning curve for robot-assisted knee arthroplasty; optimizing the learning curve to improve efficiency.Biomedical engineering letters · 2023Review
- The landscape of surgical robotics in orthopedics surgery.Biomedical engineering letters · 2023Review
- The learning curve in robotic assisted knee arthroplasty is flattened by the presence of a surgeon experienced with robotic assisted surgery.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Introduction of ROSA robotic-arm system for total knee arthroplasty is associated with a minimal learning curve for operative time.Journal of experimental orthopaedics · 2022Article
- Robotic-arm assisted total knee arthroplasty has a learning curve of 16 cases and increased operative time of 12 min.ANZ journal of surgery · 2022Article
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Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeUKA has higher revision risk, particularly for lower volume surgeons. While robotic-arm assisted systems allow for increased accuracy, introduction of new systems has been associated with learning curves. The aim of this study was to determine the learning curve of a UKA robotic-arm assisted system. The hypothesis was that this may affect operative times, patient outcomes, limb alignment, and component placement.
methodsBetween 2017 and 2021, five surgeons performed 152 consecutive robotic-arm assisted primary medial UKA, and measurements of interest were recorded. Patient outcomes were measured with Oxford Knee Score, EuroQol-5D, and Forgotten Joint Score at 6 weeks, 1 year, and 2 years. Surgeons were grouped into 'low' and 'high' usage groups based on total UKA (manual and robotic) performed per year.
resultsA learning curve of 11 cases was found with operative time (p < 0.01), femoral rotation (p = 0.02), and insert sizing (p = 0.03), which highlighted areas that require care during the learning phase. Despite decreased 6-week EQ-5D-5L VAS in the proficiency group (77 cf. 85, p < 0.01), no difference was found with implant survival (98.2%) between phases (p = 0.15), or between 'high' and 'low' usage surgeons (p = 0.23) at 36 months. This suggested that the learning curve did not lead to early adverse effects in this patient cohort.
conclusionIntroduction of a UKA robotic-arm assisted system showed learning curves for operative times and insert sizing but not for implant survival at early follow-up. The short learning curve regardless of UKA usage indicated that robotic-arm assisted UKA may be particularly useful for low-usage surgeons. LEVEL OF EVIDENCE: Level III, Retrospective cohort study.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.