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13 maj 2024 · The pterional or fronto-temporo-sphenoidal approach is one of the most frequently performed neurocranial craniotomy / craniectomy approaches and allows access to numerous important supratentorial anatomical substrates of vascular and neoplastic pathology.
The pterional or frontotemporal craniotomy is the workhorse of the supratentorial approaches. Because of its simplicity, flexibility, efficiency, and familiarity to neurosurgeons, this corridor is the most commonly used surgical route to lesions along the anterior and middle skull base.
Sagittal oblique illustration (b) and three-dimensional volume rendering (c) demonstrate pterional (frontotemporal) craniotomy, the preferred approach for Circle of Willis aneurysms or cavernous sinus lesions.
17 lis 2019 · The pterion is the H-shaped formation of sutures on the side of the calvarium representing the junction of four skull bones: the greater wing of the sphenoid bone. squamous portion of the temporal bone. frontal bone. parietal bone.
The pterional craniotomy for MCA aneurysms extends more distally along the Sylvian fissure than for anterior communicating artery aneurysms. This factor is especially applicable for long M1 segments harboring posteriorly projecting aneurysms.
The extended pterional approach is defined as a standard pterional craniotomy supplemented and expanded by osteotomy along the lateral sphenoid wing to the level of the superior orbital fissure, and; drilling along the roof of the orbit to flatten its surface and expand the subfrontal trajectory.
1 wrz 2012 · The key steps of the pterional approach are positioning, skin incision, interfascial dissection, craniotomy, drilling of the sphenoid wing, and the dural opening.
