My senior lab is 11 and has been having hind end issues for about a year now. My vet says he has spondylosis of the spine which mimic closely the same DM signs. He is not in any pain and a 10mg dose of Prednisone every other day has helped tremendously along with home cooked meals and no more commercial dog foods. He has developed digestion issues earlier this year that I think I have finally gotten under control by cooking for him low/no fat foods. Combined with Prednisone and cooked meals (chicken, rice, carrots, green beans, pasta and cottage cheese) he has responded wonderfully. He gets around so much better. I also bought a utility cart that he can ride in since he can no longer "walk" any great distances but we can still get out and enjoy life.