Best wishes FDC. We joined a dog rescue program last winter and took on a 3 month old Jack Rusell mix as a foster puppy. We were going to temporarily take care of him until he got adopted by someone. We noticed right off that something seemed wrong with one of his legs and that he walked funny. He was diagnosed with a torn ACL. The program we were with took care of costs for the surgery. We had to wait a few months for the surgery and were told it would be about 12 weeks of recovery. During this time he had to be taken off the adoption list. Well as you might guess, after having him for this long, he is pretty much our dog now so we adopted him. It has been about 5 months since his surgery. We tried to follow recovery instructions which were alot of rest, no running or jumping and we put a baby gate to stop him from using steps. We also did the messaging and rehab theropy exercises. He is doing fine now for the most part and is a very happy dog, but if he has a long day of playing hard and using steps he still will favor the leg and be in some pain the next day. We still limit the use of stairs and don't use our lower level much. We were also told that there is a good chance, even 50/50 that this could happen again. That would be sad, but we are in it now to do whatever it takes for him to have a happy and healthy life. I know you're a dog lover and Wrigley will be fine. Good luck