My sister had a similar problem with her yorkie-poodle. 1st I would go see an orthopedic specialist right away. For now I would follow the vets advice, that is what my sister had to do for her dog, it took about 3 monts of crate rest but but she is fine now. Back injuries in dogs are no different then people, it just takes a lot of time, patience, rest, and it will opefully work itself out. Good Luck |