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Orbitozygomatic Craniotomy

Last Updated: September 10, 2019

Technical Nuances for Modified One-Piece Orbitozygomatic Craniotomy/Osteotomy

General Considerations

The orbitozygomatic craniotomy (OZ) involves an expansion of the pterional approach through osteotomy of various sections of the superior/lateral orbital rim/roof and zygoma. This additional bone removal broadens the subfrontal trajectory and minimizes the need for brain retraction to access the floor of the anterior and middle skull base as well as the parasellar and interpeduncular spaces. It also allows an enhanced inferior-to-superior operative trajectory and working angles with flexible multidirectional degrees of operative freedom.

Multiple variations of the OZ have been described involving different amounts of bone work. The most widely used and practical modifications are the “...