Needs a definitive risk/benefit analysis. I can think of several obvious risks for this procedure which are by no means minor.
But what benefits are there? Apart from the psychological well being thing.
I made a hole in my skull when I was a kid. Ran headfirst into an old washing machine which had a protruding nut.

So, is that classified as a traumatic trepan or what?
Cheers
Mick