"Her mobility is better. She wants to do more, she doesn't just want to lie around and act like a little old lady, she's actually participating in her life again," Dr. Mary Ergen said.
She continued, ""Until I saw her with my own two eyes I didn't want to make a comment one way or another, but I'm pretty impressed with how this has worked. It's just the beginning. I think in the future we'll be using stem cells for way more than arthritis."
Bailey's owner told Nashville's News 2 that she was one around 100 dogs that were sent to the Pentagon and Ground Zero in New York in the days following the tragedy of 9/11.
The now elderly dog aided in search efforts and provided therapy for hundreds of firefighters and rescue workers.
Bailey is believed to be the first dog in Middle Tennessee to have undergone inclinic stem cell therapy.