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Related Experiment Videos

Landmarks for the greater petrosal nerve.

R Shane Tubbs1, James W Custis, E George Salter

  • 1Department of Cell Biology, University of Alabama at Birmingham, Alabama, USA. richard.tubbs@ccc.uab.edu

Clinical Anatomy (New York, N.Y.)
|March 16, 2005
PubMed
Summary

This study details the anatomical measurements of the greater petrosal nerve in the middle cranial fossa. These findings provide crucial spatial data for surgeons operating in this complex neuroanatomical region.

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Area of Science:

  • Neurosurgery
  • Anatomy

Background:

  • The anatomy of the greater petrosal nerve within the middle cranial fossa is not well-documented in English literature.
  • Accurate anatomical understanding is crucial for surgeons operating in this region.

Purpose of the Study:

  • To provide precise anatomical measurements of the greater petrosal nerve within the middle cranial fossa.
  • To assist surgeons in navigating and identifying the greater petrosal nerve during surgical procedures.

Main Methods:

  • Dissection and measurement of the greater petrosal nerve and surrounding structures in 22 cadaver sides (6 female, 5 male).
  • Quantification of distances between the nerve and key landmarks like the arcuate eminence, lateral wall, and foramen spinosum.

Main Results:

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  • Mean distance from arcuate eminence to nerve hiatus: 17.5 mm.
  • Mean length of the nerve within the middle fossa: 10 mm.
  • Mean distance from lateral wall to nerve midpoint: 39 mm.
  • Mean distance from foramen spinosum to nerve exit: 7 mm.

Conclusions:

  • The study provides essential quantitative anatomical data for the greater petrosal nerve in the middle cranial fossa.
  • These measurements can aid surgeons in safely exposing or avoiding the nerve during cranial surgery.