Well, for once Kylie's diagnosis is positive. Yeah! Today she had x-rays of her hocks and fetlocks. No significant lesions found, which is super. The ultrasound of her suspensory ligament looked great. The reason these areas may have lit up on the nuclear scan was compensatory, due to her prior injury on the right front. There may be some slight remodeling of the bone there, but nothing to make her lame, and no arthritis there. The x-rays showed no "sharp" edges, which apparently are bad. Dr. Greenman was very happy with the x-rays. So she injected Kylie's sacroiliac joints, where the nuclear scan mainly lit up. The needle was really long, and scary looking, I didn't watch for that part. Apparently this joint is suseptable to osteoarthritis in jumping horses. Two weeks of hand walking and then back to flatwork.
I found an interesting article on injection of the Sacroiliac Joint Region:
Great article on Back Pain and the Sacroiliac Joint in Horses: