Others might have a more positive experience and be able to reply to your posts with some happy news, however unfortunately from what I have witnessed in some dogs with OCD, the prognosis isn't very good at all.

Most of the cases I had seen, (having worked as a vet assistant) never made it to the racetrack, or either raced for a short while but had to be retired due to chronic unsoundness and pain.

Hope you have better luck, who knows, with the advances in technology these days, a cure could be possible.