I just wanted to throw in my two cents on this thread - whether your Bear, or any other big dog actually proves to be dysplastic or not, a good thing to have them on is Glucosamine - already mentioned by one poster (Cosequin). Every big dog can use the assistance of all natural glucosamine since they typically lack sufficient amounts of it already in their joints. As they age, it will only decline (just like us). The orthopedic surgeons I know argue that every big dog should be on glucosamine starting at 4-5 months and remain on it for life. My Berner has been on it and she is a year old now - she is the most athletic Berner I have ever seen and I hope it keeps her in top shape. My Golden, who is dysplastic in both elbows AND has two luxating patellas, has been on it since she was 9 months old. I know of her joint problems because I had her certified by the OFA at two years of age - this is my only indicator however as she has never limped a day in her life. Now the OFA can be wrong, and only time will tell - but with both elbows and knees certified as less than stellar, it is unlikely. In time, she will surely be arthritic but so far, at age 4, she is a highly active jumper and shows no signs.
So the other point here is that a dog can be dysplastic but also be asymptomatic, as in my Golden's case. If a dog is actually limping, it is a sign that it is severe - or else severe pano (growing pains) and pretty far along.
I would never give my dog Rimadyl...not for anything until they are on their death bed - that is a nasty drug and I have seen too many dogs die from it - be sure to always research the drugs you're given before giving them - as vets today do not provide you with side effects and cautionary sheets like we receive from pharmacists.
If anyone has a dog that is dysplastic or arthritic, I also highly recommend hyaluronic acid - I use Synthovial 7 since it is in liquid form and more readily assimilated - but it has worked wonders on my own stiff knees and I believe my Golden's mobility. It is naturally occuring in our bodies as well and diminishes as we age - it is attributed to arthritis setting in (as well as wrinkles and loss of vision). There are natural pain killers out there far safer, and more effective than an ugly drug like Rimadyl - always try them first before resorting to something like that.
Hope Bear proves out to only have growing pains.....defi nitely get him certified by the OFA however.
Good luck!