# Transplanum polare approach to the anterior mesiotemporal region

## TL;DR

The transplanum polare approach is a safer surgical method for accessing deep brain regions like the amygdala and hippocampus.

## Contribution

This paper introduces a novel surgical technique that reduces risks to critical brain structures during mesiotemporal procedures.

## Key findings

- The approach minimizes damage to white matter tracts and vascular structures.
- Dynamic retraction and image guidance improve precision and safety.
- It offers better outcomes for patients with mesiotemporal lesions.

## Abstract

The transplanum polare approach is a surgical technique targeting mesiotemporal structures, such as the amygdala and hippocampus. It offers a safer alternative to transcortical and transsylvian routes, reducing risks to white matter tracts, optic radiations, and vascular structures.

This method involves a pterional craniotomy with tailored sylvian fissure dissection to access the planum polare. Dynamic retraction, image guidance, and subpial dissection ensure precise resection while preserving critical neural and vascular anatomy.

By minimizing disruption and technical complexity, the transplanum polare approach enhances safety and efficacy, reducing complications and improving outcomes for patients with mesiotemporal lesions.

The online version contains supplementary material available at 10.1007/s00701-025-06530-7.