Brain Tumours

Cortical and subcortical motor mapping

Carrabba G, Fava E, Giussani C, et al. Cortical and subcortical motor mapping in rolandic and perirolandic glioma surgery: impact on postoperative morbidity and extent of resection. J Neurosurg Sci 2007; 51:45 – 51

• Stimulation mapping of cortical and subcortical motor pathways enables the surgeon to identify descending motor pathways during tumour removal. • New immediate postoperative motor deficits documented in 59.3% of patients in whom a subcortical motor tract was identified intra- operatively and in 10.9% of those in whom sub- cortical tracts were not observed.

• Permanent deficits observed in 6.5 and 3.5%, respectively