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. 2011 Mar;21(2):83-6.
doi: 10.1055/s-0030-1263283.

Endoscopic anterior skull base surgery: intraoperative considerations of the crista galli

John M Lee, Evan Ransom, John Y K Lee, James N Palmer, Alexander G Chiu

Endoscopic anterior skull base surgery: intraoperative considerations of the crista galli

John M Lee et al. Skull Base. 2011 Mar.

Abstract

We sought to measure the anatomic dimensions of the crista galli in a consecutive series of patients undergoing the endoscopic transcribriform approach for anterior skull base tumors at a tertiary academic university hospital. We performed a retrospective chart review of patients undergoing purely endoscopic transcribriform surgery for sinonasal and skull base lesions. Main outcome measures included radiological dimensions of the crista galli. A total of 12 patients were identified and treated by the senior authors at the University of Pennsylvania. The average crista galli dimensions were 12.7 ± 2.4 mm (anterior-posterior) and 12.9 ± 2.5 mm (cranial-caudal dimension). Knowledge of the dimensions of the crista galli is important in preoperative planning for both instrumentation and access.

Keywords: Endoscopic skull base surgery; anatomy; crista galli; radiology; transcribriform.

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Figures

Figure 1
Figure 1
Radiological anatomic measurements of the crista galli.
Figure 2
Figure 2
Endoscopic view of drilling the crista galli.
See this image and copyright information in PMC

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