Wow, a lot of variables here, huh? I am really keeping my fingers crossed that my son's injury(ies) are not too serious and that his recovery time, following PT and/or surgery, will be quick! I'd hate for him to miss his upcoming season, should he have a drawn-out rehab period; but, of course, his overall health is what is important... Your replies have been wonderfully helpful, as the information you've all provided has helped me to further understand what we may be facing and led me to more (online) research... There's nothing better than actually having some background information BEFORE my son receives his diagnosis!