Safe and effective use of active robotics for TKA: Early results of a multicenter study

Background: A novel active robotic system for total knee arthroplasty (TKA) performs automated milling of bone surfaces. Study objectives were to assess system safety and effectiveness in a US population. Methods: A multicenter clinical trial was conducted, following 115 patients for at least 6-months. A pre-defined list of robot-related adverse events was used to evaluate safety. Efficacy was assessed radiographically comparing planned versus achieved corona' limb alignment. Results: No pre-defined adverse events occurred and postoperative limb alignment more than +/- 3 degrees from plan occurred in 11.2 % of cases. Conclusion: Active robotics for TKA is safe and effective as demonstrated in this trial.

Automated summary

The study found that the new active robotic system for total knee arthroplasty was safe and effective in a US population, with no predefined adverse events occurring and only 11.2% of cases having postoperative limb alignment more than +/- 3 degrees from the plan.