Single-entry two-stage rotational outside-in technique for simultaneous ventriculostomy and pineal region biopsy using traditional ventricular endoscope: technical note and comparative review.

Our single burr hole two-stage rotational technique for simultaneous third ventriculostomy and posterior third ventricular biopsy seems to be an excellent alternative to other methods which can be used with both traditional 6° and greater angled ventriculoscopes without any significant deterrent.