From the pictures you posted she appears to be rather leggy for her breed, high in the rear, long in the hock, and somewhat straight in the rear/stifle(keep in mind that I’m also on a tiny iPhone so the pictures aren’t so great on my end). That being said none of those things necessary mean that she will or will not have issues due to her structure in the future. At this point she’s not fully grown and things may change, typically most breeds aren’t fully grown until they’re 2, and the age at which they were fixed can also have an affect their growth. From my understanding many agility people hold off on working and competing with their dogs until they are 2 and fully grown out.
The biggest structural concerns you would be likely to encounter would be hip or ACL issues. You could have your vet X-ray the hips and send them off to be evaluated by the OFA, but you can’t get an official rating until your dog is 2 years old. Ideally if you can find a vet that’s certified in doing PennHip testing that would be the best and you could get accurate results now. IME talking with other breeders and evaluating pedigrees full of OFA results and comparing those with hands on evaluation of the structure and movement of those same dogs, the general consensus is that OFA is too objective and not as useful compared to PennHip. I’ve seen multiple dogs be rated as fair or good and then had the exact same X-rays be rated as excellent when they were submitted for re-evaluation for OFA. The problem with PennHip is that not any vet can do it so you might not have any one available in your area who’s certified in doing it, whereas with OFA any vet with an X-ray unit can obtain the required image(s) and submit it for evaluation.
On a side note, you may want to let your vet know that you’re planning on doing agility with your girl and discuss possibly doing some sort of glucosamine or joint supplement prophylacticly.
The biggest structural concerns you would be likely to encounter would be hip or ACL issues. You could have your vet X-ray the hips and send them off to be evaluated by the OFA, but you can’t get an official rating until your dog is 2 years old. Ideally if you can find a vet that’s certified in doing PennHip testing that would be the best and you could get accurate results now. IME talking with other breeders and evaluating pedigrees full of OFA results and comparing those with hands on evaluation of the structure and movement of those same dogs, the general consensus is that OFA is too objective and not as useful compared to PennHip. I’ve seen multiple dogs be rated as fair or good and then had the exact same X-rays be rated as excellent when they were submitted for re-evaluation for OFA. The problem with PennHip is that not any vet can do it so you might not have any one available in your area who’s certified in doing it, whereas with OFA any vet with an X-ray unit can obtain the required image(s) and submit it for evaluation.
On a side note, you may want to let your vet know that you’re planning on doing agility with your girl and discuss possibly doing some sort of glucosamine or joint supplement prophylacticly.