Doctors, like most people, don't like stuff on their head. Plus in ortho there is a lot of feel to it. It's often referred to as "carpentry". The docs I know, especially those with experience, would prefer a video and a cadaver lab. Even that's a lot to ask because they are so swamped. In every surgery there is a rep from the implant company, and those reps are really the ones doing the training.
So there is certainly potential but it's just not to the point where people are excited about it.