thanks Kathi
yes, it seems he will likely need to have some form of injections as part of a co-operative treatment plan.
I didnt find your chiro comments harsh at all...I value all input as this is an area that is totally new territory to us and so I am eager to be as fully informed as possible by others' experiences, both pro and con, on all available treatments. That, coupled with being able to then ask these questions of the doctors, is helping my hubby understand more as well. (he is reading the updates here too, so thanks from him too)