Professional
Technical
IVT
orbitozygomatic craniotomy
Pronunciation: or-BIT-oh-ZY-go-MAT-ik
A surgical approach involving removal of the orbital rim and zygomatic arch to access skull base lesions.
Full Definition
An orbitozygomatic craniotomy is an extended skull base approach that involves removal of the frontal and temporal bone flaps along with the orbital rim and zygomatic arch. This technique provides enhanced visualization and access to complex skull base tumors, particularly those in the parasellar region, cavernous sinus, and petroclival area. The approach minimizes brain retraction by maximizing the working angle and is often used for large meningiomas, craniopharyngiomas, and other challenging skull base pathology.
Usage
Usage note: Commonly abbreviated as 'OZ craniotomy' in surgical notes.
In Context
- "The large petroclival meningioma required an orbitozygomatic craniotomy for safe resection." — Operative report
- "Postoperative imaging confirmed gross total resection via the orbitozygomatic approach." — Surgical outcome note
Also known as
OZ craniotomy
skull base approach
Don't confuse with
pterional craniotomy
frontal craniotomy