During surgery, a surgeon will stop and consult medical images anywhere from once an hour to every few minutes. So the surgeon doesn't have to leave the table, the doctor will work with assistants, but sometimes, if you want things done to your satisfaction, you have to do it yourself.
Dr. Tom Carrell, a consultant vascular surgeon at Guy's and St Thomas', described an operation on a patient's aorta earlier this month to New Scientist. "Up until now, I'd been calling out across the room to one of our technical assistants, asking them to manipulate the image, rotate one way, rotate the other, pan up, pan down, zoom in, zoom out." With the Kinect, he says, "I had very intuitive control."