The Herald Bulletin

Morning Update

Nation & World

July 19, 2013

Three-legged donkey Emma: A lesson for veterinarians

(Continued)

AUBURN, Ala. —

He said a handful of attempts have been made in larger animals, some more successful than others.

"I think every case that we achieve success in we get a little closer for this being something that we can offer as a potential routine therapy down the road," said Caldwell, an associate professor at Auburn.

Sally Baker, a spokeswoman with the American Association of Equine Practitioners in Lexington, Ky., said there aren't any statistics to show how many animals are euthanized annually because of leg injuries or deformities.

The problem is serious enough that a few researchers are doing prosthetics research similar to that performed on Emma, she said. But not many.

"It doesn't happen very often," she said. "I'm glad to hear they are doing it at Auburn."

Emma was only 2 days old when she arrived at Auburn's large animal clinic. Doctors determined the only way to save her life was to amputate the lower portion of her right rear leg and fit the animal with a prosthetic limb.

Hanger Clinic Inc., which makes medical products including prosthetics for people and animals, made one limb for Emma, then another and another, as the little donkey matured past her first birthday.

"Emma's design has changed through the time since she first was fit," said Kent Wiggins, an area clinic manager for Hanger. "Part of the reason is that she's grown. Another part of the reason is that as she's changed her activities she gets different pressure points, different problems, and we have to react and make changes in order to keep her going."

Emma's current prosthetic doesn't bend and has a rubber tip rather than a hoof. Caldwell, students and the prosthetics company are trying to figure how to make an artificial limb that would both flex like a real hoof and support the donkey's weight.

"I've learned a lot," said Caldwell. "The students and surgery residents that have worked with her have learned a lot about just what it takes to achieve this in an animal. We've had a lot of complications, a lot of issues that we've had to overcome."

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