Revisiting the Transorbital Approach for Emergency External Ventricular Drainage: an Anatomical Study of Relevant Parameters and Their Effect on the Effectiveness of Using Tubbs' Point.
Neurosurgical review(2023)
摘要
The transorbital approach (TOA) can provide immediate access to the lateral ventricles by piercing the roof of the orbit (ROO) with a spinal needle and without the need of a drill. Reliable external landmarks for the TOA ventriculostomy have been described, however, the necessary spinal needle gauge and other relevant parameters such as the thickness of the ROO have not been evaluated. Nineteen formalin-fixed adult cadaveric heads underwent the TOA. Spinal needles of different gauges were consecutively used in each specimen beginning with the smallest gauge until the ROO was successfully pierced. The thickness of the ROO at the puncture site and around its margins was measured. Other parameters were also measured. The TOA was successfully performed in 14 cases (73.68
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关键词
External ventricular drain,Tubbs’ point,Anatomy,Transorbital approach,Hydrocephalus,Intracranial pressure
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