we have a weener dog that is a rescue, probably over 10 yrs old, because of the grey muzzle. about 6 months ago he hurt his back and his back legs were parayized. would put him outside and he would follow the other dog dragging his hind legs. after 2 months of treatments and cage rest he was still paralyzed so ordered him a custom 2 wheel cart. he hated it and started trying to pull his legs under him, would wobble and fall but after a couple of weeks was showing remarkable improvement. today you would never know he had been paralyzed