Hi all, its been a while. Pure Arabian mare, 20 at the end of this year. Issue is in the hind legs fetlocks are at 90% angle instead of a lovely 45% angle they used to have. Has been a slow and over the last 5 years happening. Swelling on one fetlock and one hock, no lameness, moving well at walk and trot, can canter but rarely does. Ok, I know of the disease and have read up plenty, but need to know when to let go. Hoping that someone here will have some first hand experience with it. So my question is what am I looking for when its time to let my mare go? Will there be consistent lameness? Do the fetlocks drop to the floor? Will she suddenly be unable to get up? I'm and early rather than later with pts, but we are not even close yet and want to be prepared so that I will know it when I see it, I will be able to get it done straight away. Thanks in advance!