Today, she went to Winner's Circle Equine Clinic, where Dr. Beck examined the swollen knee she came to us with. To our surprise and relief, on x-ray, her legs were totally clean! Dr. Beck diagnosed it as merely being some fluid build-up in the knee, from her overgrown hoof striking it -- a condition known as "knee knocking," in Standardbred circles.
Now that her hooves have been trimmed, all that's needed is a few days of wrapping with poultice, to bring her back in order.
Otherwise, the mare is totally sound and healthy, and will be up for adoption soon!