Duffy has NEVER jumped off of or fallen off of a high place
. He is 4 pounds and is, thankfully, too scared to try to jump as of yet. When the vet showed me his knees he had me put my thumb on top of his when he moved the kneecap in and out of the socket area. Kinda freaky
So I don't think that is the problem. I can understand the wanting proof of the problem and I will get that if necessary. As for the life threatening part, the knees may not be but having him under anesthesia for surgery is always risky, especially in a tiny.