This is far too simplistic a view of what is happening

The cranial bones are flexible, semi-rigid spacers in a semi-elastic network
which encompasses the
whole body - non-locally generated tensions are as important as
locally-generated ones

The bones are not tight or loose - and any slackness in the elastic matrix (and
hence relatively
loose sutures) is caused by a tightness somewhere else, and it is the tightness
that needs to be
addressed

I suggest that you study Ken Snelson's tensegrity structures/sculptures to get a
better working
mechanical model of the body - (mis)interpreting cranial theory and using it to
justify injection of
anaesthetics is imo frought with dangers.

This is a self-repairing, intelligent system, and it is possible to use that
intelligence rather
than hitting it with a sledgehammer

AC