Robots in the OR Are Winning Patients Over

New AAOS research shows robotic knee replacement triples patient satisfaction odds and carries no extra infection risk in hip surgery

27 Mar 2026

Robotic surgery has long promised better outcomes. Two new studies suggest it is finally delivering them.

Research presented at the 2026 American Academy of Orthopaedic Surgeons annual meeting in New Orleans found that patients who underwent robotic-assisted total knee replacement were 3.2 times more likely to report satisfaction a year later than those who had conventional surgery. Among patients under 75, satisfaction hit 93.5% in the robotic group versus 84.6% in the conventional one. Quality-of-life improvements followed the same pattern.

The second study tackled the concern that has slowed robotic adoption most: infection risk. Across nearly 32,000 total hip replacement cases, researchers found no meaningful difference in infection rates between robotic or navigated techniques and traditional surgery. Operative time ran about four minutes longer on average, but that gap had no effect on infection outcomes once clinical factors were weighed.

That combination of findings matters. Better patient experience and a clean safety record are exactly what hospital administrators and surgical teams need to hear before committing to expensive new technology. The case for robotic joint replacement, once largely theoretical, is now empirical.

The scale behind these numbers adds weight to the argument. Robotic-assisted total joint replacement volumes in the United States climbed more than 600% between 2015 and 2020. That kind of growth means the data reflects real-world conditions, not controlled trials with hand-picked patients. Researchers did caution that high-volume centers may post stronger results than institutions still early in their robotic programs, and that satisfaction data beyond one year remains limited.

Still, for any surgical team counseling a patient on their options, or any CFO staring down a capital budget, the signal from New Orleans is hard to ignore. Robots in the operating room are not just a novelty. They are becoming the standard against which conventional surgery gets measured.