Haha this is incredible! I've never seen these surgeries. Technically you could do this on a person too, I don't see any reason it wouldn't work. Of course, with our current level of scientific understanding, we have no means to 're-connect' the spinal cord--that is currently our rate limiting step in surviving a controlled decapitation, say one performed under hypothermia in an OR suite. We could use a bypass machine on a severed head, but it would still be a quadriplegic and unable to breathe for itself.

Futurama's 'heads in bowls' is not so far-fetched if we never figure out our to reattach a spinal cord.