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Robotics and the Modern Total Knee Arthroplasty

Buza, John, A., III, MD; Vigdorchik, Jonathan, MD; Schwarzkopf, Ran, MD

doi: 10.1097/BTO.0000000000000279

Robotic-assisted knee arthroplasty has been clinically available for the past 2 decades, but is still in the early stages of adoption for use in total knee arthroplasty (TKA). The purpose of this technology is to improve the precision, accuracy, and reproducibility of TKA. Robotic-assisted systems may be passive, semiactive, or active. Although robotic-assisted systems have been used extensively in unicondylar knee arthroplasty, there are relatively few studies of using this technology in TKA. These early studies have shown that robot-assisted technology may lead to improvements in both mechanical axis and component alignment. No studies have demonstrated that these radiographic improvements have translated into any clinical benefit, however. The purpose of this review is to introduce robotic-assisted systems for use in knee arthroplasty, describe the potential advantages and limitations associated with this technology, and review several of the systems that are currently available.

NYU Langone Medical Center, Hospital for Joint Diseases, New York, NY

The authors declare that they have nothing to disclose.

For reprint requests, or additional information and guidance on the techniques described in the article, please contact Ran Schwarzkopf, MD, at or by mail at Department of Orthopaedic Surgery, NYU Langone Medical Center, Hospital for Joint Diseases, 301 E. 17th St., New York, NY 10003. You may inquire whether the author(s) will agree to phone conferences and/or visits regarding these techniques.

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