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Acta Neurochirurgica

, Volume 140, Issue 3, pp 201–205 | Cite as

The Petrolingual Ligament: The Anatomy and Surgical Exposure of the Posterolateral Landmark of The Cavernous Sinus

  • I.M. Ziyal
  • E. Salas
  • D.C. Wright
  • L.N. Sekhar

Summary

The petrolingual ligament is the posteroinferior attachment of the lateral wall of the cavernous sinus, where the internal carotid artery enters the cavernous sinus. The petrous segment of the internal carotid artery finishes and the cavernous segment begins at the superior margin of this ligament. The ligament is surgically important due to its identification as a landmark for dissection of the internal carotid artery during the approaches to posterolateral intracavernous and extracavernous lesions. It can be well exposed after mobilization of the gasserian ganglion, or after the trigeminal root and ganglion have been split along the junction of V2 and V3 (the transtrigeminal approach). The petrolingual ligament was studied in five cadaveric head specimens from ten sides. The size of the ligament was measured, and its anatomical, clinical and surgical importance is discussed.

Keywords: Cavernous sinus; internal carotid artery; petrolingual ligament; transtrigeminal approach 

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Copyright information

© Springer-Verlag Wien 1998

Authors and Affiliations

  • I.M. Ziyal
    • 1
  • E. Salas
    • 1
  • D.C. Wright
    • 1
  • L.N. Sekhar
    • 1
  1. 1.Department of Neurosurgery, The George Washington University Medical Center, Washington, DC, USA.US

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