We had a filly like that once, not quite as bad, but still looked terrible. My vet had me get some small thin wall PVC pipe and cut it in half, long ways, round off the edges so they were smooth. Use one half for each leg. Then we got some of the quilted leg wraps (you could probably use any kind of thin quilting) and cut them so they were not so bulky and wrapped the leg all the way around and make sure the quilting came above the edges of the pipe half. The pipe fit on the back of the leg, cradleing the leg below the elbow, down and to just above the fetlock. Then we vet wrapped it on and left them on all night, took the off in the morning and left the off all day. My vets theory was, it gave the tendons a chance to "draw up" instead of being stretched out all the time and it worked and she was much better after about a week. Be carefull and watch for pressure or rubbed sores. But you should still consult your vet. This was our experience with it.