Karen
I am a physical therapist, and can tell you that there are exercises that your son can do that should help to decrease his kyphosis - if he is faithful to them. This is not to say that he will not need any kind of brace, but would certainly be a good adjunct to it, possibly decreasing the length of time he would need to wear the brace. Ask your doctor for a referral to a physical therapist if your state requires a physician precription - not all do. Good luck!