it's possible, it just may be hard. you'll have to work for it. and in all honesty, it would be hard to get a dance company to hire you with an arm problem like that, but i don't really think it will be a big problem. if you want to try out for a dance company, most likely you'll have to explain to the people your problem...they might let you have a shot :) besides, some of the greatest athletes in history have problems...bethany hamilton is a surfer with 1 arm! good luckkkkk!