Robotics and the modern total knee arthroplasty


Robotics and the Modern Total Knee Arthroplasty, by Buza et al. Techniques in Orthopaedics (2018) 33(1):66–70


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.

Tibial and femoral arrays guiding the placement of
the saw, which changes to “cutting mode” when it is placed
within the stereotactic boundary determined during the
planning phase.