I'll mention next time I visit the vet. Like she had told me, it's not anything that will be a hindrance on Kananga. He just needs to be at an ideal weight to reduce any risk of aggravating his knee.
Other than that he can still be 100% active without any side effects. That's why she said it was a Grade 1 and not anything above that, it's minor.
Have you told his breeder? And certainly something you want to share with his breeder… and something that his breeder should take into consideration when planning any future breedings.... as in checking his sire/dam and any offspring....
Regardless of the degree, it is a defect in breeding and needs to be considered for any breeder...