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Related Experiment Videos

The sphenoparietal sinus.

R Shane Tubbs1, E George Salter, John C Wellons

  • 1Department of Cell Biology, University of Alabama at Birmingham, Birmingham, Alabama 35233, USA. rstubbs@uab.edu

Neurosurgery
|February 14, 2007
PubMed
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The sphenoparietal venous sinus, crucial for cranial base surgery, is consistently present and typically connects to the Sylvian vein. This study clarifies its anatomy, aiding in surgical planning and reducing potential complications.

Area of Science:

  • Neurosurgery
  • Anatomy
  • Vascular Anatomy

Background:

  • The sphenoparietal venous sinus anatomy is poorly documented.
  • Controversy exists regarding the Sylvian vein's drainage into this sinus.
  • This sinus is encountered during cranial base approaches near the sphenoid bone and superior orbital fissure.

Purpose of the Study:

  • To provide detailed anatomical information on the sphenoparietal venous sinus.
  • To clarify the drainage patterns of the Sylvian vein into this sinus.
  • To assist clinicians in diagnosing pathologies and reducing surgical morbidity in the relevant region.

Main Methods:

  • 15 adult cadavers (30 sides) were used.
  • Blue latex was injected into the sphenoparietal sinus via the cavernous sinus.

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  • Detailed observations and measurements of the sinus and adjacent structures were recorded.

    • Main Results:

    • A sphenoparietal venous sinus was present bilaterally in all specimens.
    • The mean diameter was 2.5 mm (left) and 3 mm (right), with no significant side or sex differences.
    • The sinus connected to the Sylvian vein in all but one specimen and often received drainage from anterior temporal veins.

    Conclusions:

    • The sphenoparietal venous sinus is a consistent anatomical structure.
    • Understanding its anatomy, particularly its connection with the Sylvian vein, is vital for neurosurgeons.
    • This knowledge can improve surgical outcomes and reduce complications in cranial base surgery.