Story highlights Man paralyzed after an accident with a drunken driver gets electrodes wired into his spine

Researchers try different voltages, and after a couple hours, patient is able to move his legs

Other test subjects have got bladder and sexual function back after treatment

(CNN) Every morning for 2½ years, Calven Goza tried to move his legs, hoping against hope and medical science that this time, this day, would be different.

It never was.

An accident with a drunken driver left Goza paralyzed below the chest. No amount of wishful thinking could help him move his legs again.

But on December 5, Goza, 26, got another chance.

This time, researchers wheeled him into a laboratory at the University of Louisville. There, he became one of the first study subjects to receive a new therapy designed to help paralyzed people move their legs again.

Read More