SynthesisJournal of robotic surgery2026
Robot-assisted vs. navigation-assisted total knee arthroplasty: A systematic review and meta-analysis of the latest controlled studies based on perioperative, functional, and radiographic outcomes.
Synthesis in Journal of robotic surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
4 authors.
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Abstract
Total knee arthroplasty (TKA) is a cornerstone treatment for severe osteoarthritis (OA), yet debates persist regarding the comparative efficacy of robot-assisted (RA-TKA) versus navigation-assisted techniques (NA-TKA). This meta-analysis evaluates perioperative, functional, and radiographic outcomes of RA-TKA versus NA-TKA to guide clinical decision-making. A systematic review of 28 studies (2 RCTs, 26 retrospective cohorts) included 456,122 patients. Data were analyzed via RevMan 5.4 using random-effects models, focusing on hospital stay, surgical duration, complications, alignment accuracy, and functional scores. RA-TKA reduced hospital stay by 0.28 days (p < 0.001) and hospitalization costs by $1,289 (p < 0.001) but prolonged surgery by 8 min (p = 0.02). These findings should be interpreted with caution due to high heterogeneity. Complication rates were comparable, yet RA-TKA exhibited lower absolute incidences of prosthesis loosening (RA:110 vs. NA:378) and deep vein thrombosis (RA:272 vs. NA:1,480). Radiographic alignment showed no significant differences except smaller HKA angle deviations in RA-TKA (− 0.57°, p < 0.001). Functional outcomes (KOOS-JR, KSFS) marginally favored RA-TKA but lacked clinical significance. RA-TKA may offers economic and precision advantages in restoring mechanical alignment, despite longer surgery times. Large-scale RCTs are warranted to validate long-term benefits and cost-effectiveness.
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