[anonymous]

Hope these blogs help, check the comments too.
http://skeptvet.com/Blog/category/acupuncture/
http://skeptvet.com/Blog/?s=arthritis

Ps: You can ask a question over there, if skeptvet responds he will give you a general answer, as he has not examined your dog.
Nothing is being sold at that site.
Vets tend to participate, so you may find some helpful information.
Good luck.