Heck no. BTDT, and it's too much work. If you hatchet it, you get bone fragments flying everywhere. As I'm sure you know, if you take a sharp knife and cut up inside the the ham, you can pretty easily cut all around the ball joint of the hip socket and release the ham from the pelvis. Much less grief.
As far as exactly what you describe, I'm not sure I understand, but no I do not think that I do it that way. More of a willy nilly, cut here, gut there until the digestive tract is out. And yes I've cut & spilled the bladder and the meat still tasted fine, near as I can tell.