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

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)83-86
Number of pages4
JournalSkull Base
Issue number2
StatePublished - 2011


  • Endoscopic skull base surgery
  • anatomy
  • crista galli
  • radiology
  • transcribriform

ASJC Scopus subject areas

  • Clinical Neurology


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