http://www.thespectrum.com/article/2009110...comes-paralysis
Seems like this treatment works on incompletes. Doubt it would work on completes because the article says, "The program utilizes electrodes placed on a patient's muscle group to read electrical signals transmitted from the brain to the muscle. An attached computer reads electrical impulses, displaying the signals on a monitor for the therapist and patient to see during treatments." If no signal even gets to the muscle group, then the computer has nothing to read.
This article doesn't mention anything about returning sensation. I wonder if any of these patients got any back.