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Updated: Jul 17, 2025

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
Paraclinoid aneurysms clipping through an extradural sphenoid ridge keyhole approach
Edgar Nathal1, Alejandro Serrano-Rubio2, Camilo Armando Benavides-Burbano2
1Department of Vascular Neurosurgery, National Institute of Neurology and Neurosurgery "Manuel Velasco Suárez", Universidad Nacional Autonoma de México (UNAM), Insurgentes Sur 3877, Tlalpan, Mexico City, 14263, Mexico. enathal@yahoo.com.
Background:
Paraclinoid aneurysms represent a challenge for neurosurgeons due to the anatomical complexity of this region. Then, innovative techniques such as the extradural sphenoid ridge approach are suitable for a safe microsurgical clipping.
Method:
A description of the surgical technique was made by the senior author, a vascular neurosurgeon experienced with the use of this approach in the management of paraclinoid aneurysms exemplified through a clinical case.
Conclusion:
Microsurgical clipping through an extradural sphenoid ridge keyhole approach for small and midsize paraclinoid aneurysms is an excellent treatment modality with good clinical and surgical results.

