Journal of the American Academy of Orthopaedic Surgeons · IF 2.9 · July 31, 2026 · LoE III
Implant-Related Complications After Robotic-Assisted Versus Manual Revision Knee Arthroplasty: A Propensity-Matched Cohort Study
Majd Mzeihem, Ali Rteil, Yasser Farid, Omar Martini, Hristo Piponov, Lalit Puri, Farid Amirouche — University of Illinois Chicago
This retrospective database study compared complication rates after robotic-assisted versus manual revision total knee arthroplasty using propensity-matched cohorts of about 2,010-2,210 patients per group. Robotic-assisted revision was associated with lower odds of mechanical implant-related complications (instability, loosening, periprosthetic fracture) at 3 months (OR 1.67) and 6 months (OR 1.66), lower early VTE and opioid use, and a lower revision rate by 3 years (13.5% vs 11.4%, OR 1.22), while infection, readmission, and early revision rates did not differ significantly between groups.
AI summary · from the full text · reviewed by Pukhraj Gaheer, Medical Student, Queen's University before publishing
Why it mattersAs robotic platforms expand into the technically demanding revision knee arthroplasty space, surgeons need to know whether the touted precision benefits translate into fewer mechanical failures and reoperations, not just better alignment on imaging.
Conclusion strengthConfirms prior evidence
A clinically important harm: the entire 95% CI 1.4 to 1.98 is worse by more than a 25% relative increase.
Presenting this at rounds? Start here
- ?If robotic assistance in revision TKA truly lowers rates of aseptic loosening and instability, should surgeons prioritize robotic platforms specifically for revisions where bone loss or component malalignment is the indication?
- ?Given that PJI, readmission, and early revision rates were similar between robotic and manual revision TKA, should patient counseling emphasize long-term mechanical durability rather than short-term safety as the main selling point of robotic revision surgery?