Modification of the standard pterional approach for aneurysms of the anterior circle of Willis
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Updated: Oct 24, 2026

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
S P Harland1, A Hussein, R W Gullan
1South East Thames Regional Neurosurgical Unit, Brook General Hospital, London, UK.
Abstract:
A modification of the standard pterional approach for aneurysms of the anterior circulation is described. Our technique utilizes a smaller curvilinear skin incision, splitting the temporalis and a limited craniectomy. Reduced tissue dissection results in a smoother postoperative course and improves cosmesis without compromising neurological recovery. Minimal brain retraction is required as the technique allows the surgeon to make full use of the basal opening without temporalis muscle obscuring the view.
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