Our cat just started walking on his back legs after surgery to have some teeth removed. He also had an inflammation in his gums which was benign and was removed. But once he came home from surgery, we noticed the change in his gait and walking-dragging his back hindlegs. Could it have anything to do with the anesthesia?. He has a massive amount of blood work and everything was normal. He is a rescue cat but is approximately 13 years old.