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Robotic-arm-assisted versus conventional total knee replacement (RACER-Knee): a pragmatic, multicentre, participant-masked and assessor-masked, superiority, randomised controlled trial
Posted on: 17 October, 2026

Robotic systems are being increasingly used to assist with total knee replacement (TKR). Whether robotic systems improve outcomes after TKR is uncertain. We aimed to ascertain the clinical efficacy and cost-effectiveness of the Mako robotic-arm system compared with conventional instruments for TKR.

Source: The Lancet

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  • American Academy of Orthopaedic Surgeons
  • Mid-America Orthopaedic Association
  • Hospital for Special Surgery
  • American Association of Hip and Knee Surgeons