I feel like such a neophyte in these arenas.  The hole that Mr Grayson discusses at the end of the button hole is interesting.  In my line of work, I do some carpentry on the human skull.  I will sometimes create what is called a barrel stave osteotomy in the skull or a straight cut in the skull to add to its shape or rather re-shape.  In an attempt to prevent that line or incision or cut in the bone from extending beyond where I stop, I make a small round hole.  The bone will not tear or the cut will not extend further.  Does a keyhole have the same function?  I know that stitching arond the buttonhole will prevent the hole from extending, but can there be some function to the keyhole?  I am not a carpenter, just a simple surgeon...

Last edited by bwep (2006-03-31 19:47:59)