Why is dorsal column mapping performed during surgery?

Dorsal column mapping is a surgical technique primarily employed to ensure optimal outcomes in neurosurgery, especially during procedures involving the brain or spinal cord. The reason for performing this mapping is to locate the dorsal median septum, which is crucial for making precise incisions and avoiding damage to neural structures. By accurately identifying the dorsal median septum, surgeons can navigate the intricate anatomy of the spinal cord and make targeted interventions without causing undue harm to surrounding tissues.

The identification of the dorsal median septum aids in delineating spinal cord pathways and ensuring that interventions are focused and effective. Specifically, this mapping facilitates the preservation of important sensory and motor pathways, which might otherwise be inadvertently compromised during surgical procedures.

In contrast, identifying the central sulcus is more related to accessing areas of the motor and sensory cortex and not confined to the dorsal column mapping technique itself. Assessing blood flow to the spinal cord deals with vascular considerations during surgery, not directly with mapping. Evaluating sensory and motor cortex functionality pertains to separate functional assessments rather than the primary purpose of dorsal column mapping.