I forgot I initially posted this thread on Horse Talk. I posted the same thing in Horse Health.
I think the people initially looking at this horse were wanting a mount that they could readily compete at high levels with due to her pedigree and whatnot. The mare's dam had the same problem - her growth plate in her hock closed later than usual but still closed in the end. This mare has had 90 days of training that has sort of been spread out. Started at 4 and was ridden occasionally, then trained again at 5 with sporadic riding. Now she is 6.
Here's the reason I was posting about this:
Well, I just bought a horse - gorgeous Oldenburg mare by Rosenthal and out of a Wolkenstein II mare. She's never taken a lame step but in one video from last year a friend of mine said her left hind leg didn't track as well. I think it just wasn't touching down entirely in-sync but it isn't obvious. I don't see it but I stink at judging videos unless it is a more obvious issue. I usually miss the really subtle things. I rode her, tried her out, etc. and she was perfect. Showed the videos to my friend and she said the mare looked great.
Well, the owner said upfront that the mare's left hock growth plate was open when they last had x-rays done but that was the only blemish. So I had the vet come out to perform a PPE. She passed with flying colors - reproduction organs, heart/lungs, body scale, conformation, etc. Then we did the flexion test. Halfway through it (she had only done the right side) the horseflies started really going after the mare so she wasn't standing still anymore since they were chomping on her (she had blood spots by the end of it all). We were slapping them off left and right. Every leg was perfect. The vet flexed the left hind last and it supposedly wasn't as great for a few steps. Supposedly she was initially hesitant putting it down as she lurched forward again from the flies but then quickly put weight on it and trotted down the length of the ring no problem.
The vet said all were perfect but the left hock was a 1 on the scale, but that the mare is sound. I just don't know if it can be totally accurate considering how the flies were effecting her (she would buck a smidge but never maliciously toward us).
Nonetheless, if her riding career ended, she would be an ideal broodmare - the vet and owner said. Her foals, due to pedigree alone, would be worth $12k+.
I think this is the video my friend claimed there was a step difference: ROSWITHAWITHPAULA2 (3) - YouTube
And here are videos from when I visited her and tried her out. I recommend muting the video unless you want to hear my mom talking and dogs barking.
In this video you can skip through the first 5+ minutes. Did a lot of walking because, since this was her first ride in a while, she felt like a firecracker ready to go at first haha
Others from this forum have looked at the videos as well and see no issues.
Here's one of her jumping from 2 years ago. I feel like she isn't even trying though so it doesn't look the greatest haha: