Barbaro's vital signs good

Kentucky Derby winner Barbaro remained in stable but serious condition Wednesday at the University of Pennsylvania's equine hospital, two days after veterinarians changed casts on both of his hind legs.

The colt is recovering from the shattered right hind leg he sustained in the May 20 Preakness and from laminitis he developed last week in his left hind leg because of excessive weight-bearing on the left leg.

"Barbaro spends several hours a day in a sling, which he has adapted to very well," Dr. Dean Richardson, chief surgeon at the University of Pennsylvania's New Bolton Center, said in a release issued Wednesday afternoon. "We have a lot of experience in using slings for equine support. In Barbaro's case, it is a part-time aid that we use to increase his comfort level."

The release also noted that Barbaro's vital signs remained "good" on Wednesday afternoon.