Zimmer received 510(k) clearance for its Rosa knee system in 2019. Competing with companies including Stryker and Johnson & Johnson, Zimmer has moved to strengthen its position by developing an updated robot. 

At a Morgan Stanley event in September, Tornos said the updated device is internally called Rosa 1.5. The name reflects efforts to improve the existing system, which Tornos said has resulted in a product that can perform kinematic knee procedures with a much faster registration process and “the ability to deliver a level of accuracy that we don’t see today with current Rosa.”

Kinematic alignment is designed to restore the knee’s natural movement. J&J markets its knee surgery robot for kinematic alignment surgeries, reporting that surgeons can perform the procedure in at least 92% of the general population using its devices.