ArticleJournal of experimental orthopaedics2026
Robotic-assisted simultaneous bilateral total knee arthroplasty was associated with a more favorable perioperative profile than a historical conventional cohort.
Article in Journal of experimental orthopaedics, 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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Abstract
Purpose: To compare perioperative, clinical, and functional outcomes between robotic-assisted and conventional simultaneous bilateral total knee arthroplasty in a historical comparative cohort. Methods: We conducted a retrospective historical comparative cohort study of patients undergoing simultaneous bilateral total knee arthroplasty at a single high-volume arthroplasty centre between March 2013 and July 2025. Patients were stratified into a historical conventional cohort or a computed tomography-based robotic-arm-assisted cohort. Outcomes included post-operative haematocrit, blood transfusion, tourniquet ischaemia time, length of stay, post-operative complications, and Forgotten Joint Score-12 values. Results: Sixty-two patients were included: 41 in the robotic-assisted group and 21 in the conventional group. Baseline preoperative haematocrit was higher in the robotic cohort. Post-operative haematocrit was higher after robotic-assisted surgery (31.74 ± 4.81% vs. 26.68 ± 4.41%, Conclusions: Robotic-assisted simultaneous bilateral total knee arthroplasty was associated with a more favourable perioperative profile than a historical conventional cohort, particularly regarding transfusion requirement, post-operative haematocrit, tourniquet ischaemia time, and hospital stay. These findings should be interpreted cautiously because of temporal confounding, incomplete functional follow-up, and limited sample size. Level of Evidence: Level III.
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