I talked to an anathesiologist. He said that Bier Block anathesia would be used and a sedative. I would be "snoozing" during the operation and my arm would be numb. Procedure usually takes 30 min or 1 hr and said there are minimal risks and didn't think this my concussion would be an issue.

Problem is I'm sure he's just guessing and there isn't really any studies on this type of thing. Guess I'm going to have to make a judgement call.