My puppy is only 13 months old. He is a Lab/Terrier Mix and is about 65lbs. The vet recommended surgery and gave me two options. One involves implanting some sort of synthetic ligament to stabilize the joint. The other option involves plates and screws. They said that they generally do the 1st option for dogs that are under 80 lbs. Being that my dog is still a puppy I'm not too sure how much bigger he is going to get. I am hoping the people of DogForum.com can give me their experiences with this type of injury. Is surgery necessary? Is one option better than the other? Thanks in advance for all your input!