The answer to "are the patients doing better?" is no. "Is the doctors efficiency outside the surgery more?" is what the parent seems to be asking. There might be confounding variables like the doctors experience level coming into play. Are less experienced doctors more likely to use robotic surgery and still produce results that a more experienced doctor does?

Also, robots might get faster one we better understand them and that can be applied to all robots. Each humans will have to be trained individually and knowledge transfer might not be the same i.e. each human doctor starts as amateur vs robots.

I'm just playing devils advocate here.

https://jamanetwork.com/journals/jama/article-abstract/26582...