I've searched long and hard, because at one time I was considering pediatric oncology, but I wanted a way to pay for med school. Scholarships such as the National Health Service Corps ones are based on a physician shortage. At this point, there is no shortage of surgeons, nor does it seem likely there will be one, especially in a high paying field like orthopedics. However, in one of those fields you should easily be able to pay off your loans, so I'm not sure why you're desperate to find one. If you're a Christian, and your reason for wanting to do one of these is to serve in foreign missions, your church might sponsor you or you could become a surgeon through one of the military scholarship programs.... Otherwise, there simply isn't a need; take out the loans, people aren't going to pay for you to become a wealthy surgeon.