title: Endoscopic anterior skull base surgery: intraoperative considerations of the crista galli.
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.
authors.forename: John M
authors.initials: JM
authors.lastname: Lee
authors.forename: Evan
authors.initials: E
authors.lastname: Ransom
authors.forename: John Y K
authors.initials: JY
authors.lastname: Lee
authors.forename: James N
authors.initials: JN
authors.lastname: Palmer
authors.forename: Alexander G
authors.initials: AG
authors.lastname: Chiu