We adopted Indigo more than 10 years ago from a really horrible shelter. He was a wild thing who could jump really high and loved to stretch out with his hind legs behind him. Over time his legs stopped bending backwards, and now that he’s about 13 years old, his back legs buckle and slide under him. He started spending most of the day curled up in a ball in the closet. The vet recommended Canna-pet and now Indy’s back to following us up and down the stairs and taking long walks.