A FURTHER MODIFICATION of our operative positioning protocol is presen
ted, with several novel approaches to positioning that give only sligh
tly less exposure than that obtained with the modified prone position,
but that enable the entire cranial vault remodeling to be done in one
operation. The addition of two techniques has obviated both the need
to use the modified prone position (except in certain difficult cases)
in recent years and the need to get preoperative cervical spine film
evaluation. Two new operative positioning techniques that enable a lar
ge calvarial exposure are described: one (the gel-filled collar techni
que) focuses on the more anterior portion of the cranial vault, and th
e other (the angled horseshoe technique) focuses on the posterior port
ion; both provide an extensive exposure of the opposite portion of the
calvarium.