
UA mean "no faults" (rough translation)
UA is used for Elbows. UA is what you want. That means healthy elbows. If there are signs of dysplasia , the score will be 1-3, where 1 is best, 3 the worst. But UA is what you want.
On hips you get A,B,C,D,E Not UA.
A+B is OK, A of course best. C is a sign of dysplasia, and E is the worst scenario.
If you find Hips UA, it's usually someone getting it wrong. But should at least mean that hipas are without faults = UA