Hi Pat and welcome to NT tho so sorry for what has brought you here
I copied your post to our Spinal Forum too as members there will likely have the best info for you
here is a link to it there so you can check for answers
http://neurotalk.psychcentral.com/sh...ad.php?t=35411
you may also want to contact member
professirx
as this is an area he is very active in
I pray you will find help for your son
Cheri