A lot of horse lovers have been concerned about the fate of Kentucky Derby winner Barbaro. Cindy Pierson Dulay, Your About Guide to Horse Racing has updates of Barbaro's progress. Barbaro broke a hind leg in 3 places running in the Preakness. A broken leg used to be a death sentence for a horse. This is no longer so, although the cost of treatment may well be out of reach for the average horse owner. Fortunately breakdowns of this sort are unusual in riding horses.