By all means do get another Vet opinion.
Do contact the breeder . They need to know what their stock is producing .
If guarantees were offered , provide breeder with Vet's opinion or OFA opinion , and take advantage of those guarantees .
Severe bi-lateral , you aren't going to effect changes but you can do your best to prevent inflammation .
Thanks for the advice. We were debating on contacting, but now that we are learning more and more about this we will definitely be contacting them.