Woah what they do it by hand? I had assumed they had to use remote controlled robot arms or something to be precise enough.,(reply>)," There isn't too many robots used in Neurosurgery just yet like the robot that did surgery on a grape.. but we still use cool robots to help us see up close: <a href=""https://www.youtube.com/watch?v=l1hxAws5H5Y"">https://www.youtube.com/watch?v=l1hxAws5H5Y</a>"