Hips vs. Elbows
I can remember when the only thing we were concerned with was HD. Then we saw how important the elbows were.
I am beginning to believe the elbows can be even more of a problem than hips. Plenty of dogs with hips that don't pass certification, are quite capable and active way into old age. But the bad elbows, seem to be very debilitating earlier.
This is obviously a blanket statement. But I think the reason might be because the strong muscles that surround the hips, can often compensate for imperfect structure. Whereas, elbows lack those strong brace muscles. Plus, more of the dog's weight is carried by the front legs.