
My Bichon had a bioflow collar which is basically a collar with a magnet on, he suffered from arthiritis but after wearing this collar for a couple of weeks he was like a different dog - he could even jump on the sofa again

He wore that collar for the rest of his life and didnt have anymore joint problems (didnt stop him from going blind and deaf though ;) )
I dont know how they work but it certainly worked for him :) I believe you can now buy them from pet shops (I think Canac make them)
Claire :)