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Related Experiment Video

Updated: Nov 17, 2025

Exploring Deep Space - Uncovering the Anatomy of Periventricular Structures to Reveal the Lateral Ventricles of the Human Brain

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Interhemispheric contralateral approach: the falx as a retractor.

Sergio Paolini^1,2, Cristina Mancarella², Rocco Severino²

¹Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy.

British Journal of Neurosurgery

|February 16, 2021

Summary

This summary is machine-generated.

A novel falcine flap technique enhances brain retraction during contralateral transfalcine approaches, protecting the cortex. This method simplifies surgical access to mesial brain lesions while minimizing injury risks.

Keywords:

Contralateral approach Falx Interhemispheric Transfalcine

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Microvascular Decompression: Salient Surgical Principles and Technical Nuances

Microvascular Decompression: Salient Surgical Principles and Technical Nuances

Published on: July 5, 2011

Area of Science:

Neurosurgery
Surgical Technique
Neuroanatomy

Background:

The contralateral transfalcine approach offers access to mesial brain hemisphere lesions.
Surgical maneuvers in the interhemispheric fissure risk damaging healthy cortex.
Existing retraction methods can be cumbersome and pose injury risks.

Purpose of the Study:

To introduce and evaluate a novel brain retraction method for the contralateral transfalcine approach.
To enhance surgical safety and efficiency when accessing mesial brain lesions.
To mitigate the risk of inadvertent cortical injury during interhemispheric dissection.

Main Methods:

A new brain retraction technique involving an upside-down U-shaped falcine incision and flap.
The falcine flap is hinged inferiorly and reflected laterally, securing to the craniotomy edge.
This method provides homogeneous retraction of the ipsilateral mesial cortex, shielding the brain surface.

Main Results:

The falcine flap effectively retracts the ipsilateral mesial cortex, protecting it during surgery.
The technique eliminates the need for retractor devices, improving surgical maneuverability.
The brain surface remains hidden and protected by the falcine flap throughout the procedure.

Conclusions:

The described falcine flap technique is a safe and effective method for brain retraction in contralateral transfalcine approaches.
This innovative approach enhances surgical access and protection for lesions on the mesial surface of brain hemispheres.
The method simplifies surgical procedures by improving retraction and reducing reliance on traditional retractors.