Slipped growth plates are usually caused by trauma, but can be exacerbated by poor nutrition and/or poor breeding. Knuckling over has several different causes with very different treatments. Many of them need to be splinted, most need caged rest, and most need dietary changes. Here’s a list of foods with controlled calcium. Choose one of them and cut back the amount you feed until your pup is lean, thin even. Growing too fast is a major contributor to these types of problems.
https://docs.google.com/viewer?srcid=0BwApI_dhlbnFTXhUdi1KazFzSUk&pid=explorer&efh=false&a=v
