Puppy Elbows

[irenafarm]

How early can you get useful information from an x-ray on elbows. I've got a pup that I want to get this checked as early as possible because although he isn't allowed to do hard playing, I keep him from jumping, steps, etc - he IS a BC and plays pretty hard on his own and OCD (elbow displaysia) pops up every so often in his lines.

If it's going to help, I will have him checked at six months.

Thanks!