hi todd,
thought I'd pass on a tip for your dog.

Glucosamine

my old lab had such bad hips I was ready put him down when my mouther-in-law gave us a bottle, We already had new puppies for the kids. started him on the pills and he stopped limping in two days. got so he would refuse to go out the door at night if he didn't get his pill(he took it stright up no food to help it down)
he lasted anouther two years before he started limping real bad.

something to try.
eric