This horse was competing at Grand Prix level at the time it was presented at the Paxton Farm Cincinnati CDI*** This is a typical ‘lateral lander’ as I call it, which means the horse tends to land on the lateral side of it’s hoof and then compresses the medial side, causing a quarter crack. Upper level dressage horses are susceptible to this problem because the extensions asked of them amplify the affects of this common conformation. The solution is very simple in theory – allow the horse to land flat by balancing the hooves through trimming and relieve the compression by ‘floating’.
I think some drawings would be nice to show the medial/ lateral balance and how that is affected by movement. I should have done this before posting, but I am working on it now.