Insights from using biplanar intersection for freehand frontal ventriculostomy: a retrospective case-control study with virtual simulation.

Background: Frontal ventriculostomy (FV) is essential in neurosurgery; however, traditional freehand puncture methods have low accuracy, and ultrasound guidance is time consuming and expensive. To improve freehand puncture accuracy, this study introduced a biplanar intersection (BI) method, and analyzed the frontal-horn puncture mechanism. No related reports exist to date.