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Anterolateral Triangle: A Cadaveric Study with Neurosurgical Significance.

Andre Granger1, Ornella Bricoune1, Tina Rajnauth2

  • 1Department of Anatomical Sciences, St. George's University School of Medicine, Grenada, West Indies.

Cureus
|April 17, 2018
PubMed
Summary
This summary is machine-generated.

The anterolateral triangle, a key landmark in cavernous sinus surgery, was precisely measured in cadavers. These measurements aid skull base surgeons in planning complex procedures.

Keywords:
anterolateral triangledimensionsfar laterallateralmostneurosurgery

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Area of Science:

  • Anatomy
  • Neurosurgery
  • Skull Base Surgery

Background:

  • The anterolateral triangle is an important surgical landmark within the cavernous sinus.
  • Limited precise definitions and measurements exist in English literature.
  • Inconsistent nomenclature complicates understanding of this anatomical region.

Purpose of the Study:

  • To precisely define and measure the borders of the anterolateral triangle.
  • To provide objective data for surgical planning in the cavernous sinus and middle cranial fossa.

Main Methods:

  • Dissection of 12 midsagittally hemisected adult human cadaveric heads.
  • Identification and exposure of the anterolateral triangle.
  • Measurement of the anterior, posterior, and lateral borders.

Main Results:

  • Mean lengths of borders: anterior (8.3 ± 2.2 mm), posterior (5.9 ± 2.0 mm), and lateral (11.5 ± 2.9 mm).
  • Mean area of the anterolateral triangle: 20.46 ± 9.30 mm².
  • Established quantitative data for the anterolateral triangle's dimensions.

Conclusions:

  • The anterolateral triangle is crucial for understanding and planning surgical approaches to the cavernous sinus.
  • Recognizing normal anatomical relationships and dimensions is essential for accessing pathology in this region.
  • Provides a foundation for improved surgical navigation and patient outcomes.