I can understand your concern, about not wanting it to happen to you again. Their could be some truth to the weekend warrior syndrom. I was kind of concerned about crating, but then more concerned about what happens when my dog is free and I'm gone. It's a hard call, I wouldn't be suprised if the answer lies somewhere between all of these concepts. The best thing when it comes to weekend warrior syndrom, is to make sure your dog os warmed up. I don't cut my girls loose in the yard when I get home. I ignore them for about twenty minutes, then take them out for potty on the leash, feed them, and walk them and then the rough stuff. I tried to argue the crate, but then, if excercised, my girls sleep all day even if I'm home. In defense of the breeding arguement, The APBT has changed alot since 1984. They used to be a bit more leggy and their faces weren't as flat. I think breeders have been selecling a little bit more for bulldog traits which could be bringing out the bulldog knees. I really hope breeders trend away from the flatter face look a bit, because the problems associated with that are HUGE, our biggest problems may be yet ahead of us, if we continue down that road. I agree alot with you about activity, because the injuries I have seen in this breed and in Whippets (what I'm dealling with now, as I don't have an APBT foster here now) is that it is an injury from rough play. Breeding wise, we have to go back to the joint structure first, muscling after, unfortunately, people have been focusing alot on muscling on the dogs and maybe they aren't paying attention to breeding the joints up to date. The joint has to be able to hold the muscle attached to it. If you are dealing with rescue Pitts, I would assume for this to be true. These backyard breedes, drug thugs and fighting dog people are breeding for muscle, they're fighting the dogs at two years and then throwing them away. They really aren't breeding for structure and the dogs are deffinately hyped up. I would suppose, if one were to rescue one of these, there could be a multitude of factures from behavioral to physiological that are combining in a bad way and hurting the breed. As for prevention, I think supervised excercise could help. My Whippet was injured when she was playing hard with other Whippets. Know how your dog plays, don't let him get carried away, or take sharp turns when running, good food and supplements, walks to keep weight down, and keeping an eye on breeding. Breed enthusiests sway breeders with their desires for a certain look, we need to learn to recognize stuff and speak up when it starts going south. If purchased, do the breedres know that both of your dogs are affected by this?