Superior parietal lobule approach

Superior parietal lobule Approach

  • Introduction- The superior parietal lobule provides a surgical corridor between the motor and visual pathways. This approach should be well known to neurosurgeons for evacuation of hematomas, vascular malformations, and neoplasms.
  • Anatomy- The SPL is posterior to the postcentral gyrus and postcentral sulcus.

o   Anterior Border- Post central sulcus

o   Lateral Border- Intraparietal sulcusThe SPL extends from the intraparietal sulcus to the midline.

o   Posterior Border- the parieto-occipital sulcus.

o   The superior parietal lobule can be estimated based on bony landmarks. Anteriorly from the inion 7cm and lateral 3cm (left)/4cm (right) are common landmarks for the SPL.

  • Positioning- Park-bench/Lateral, affected side up. Make sure to secure the patient to the bed with tape so they don’t fall off when you rotate the bed to the contralateral side
  • Incision- Depends largely on the operation but often a sinusoidal, linear, or horse-shoe incision are employed
  • Approach- To approach tumors in the atrium of the lateral ventricle the Vycor tubes are awesome. You can split the intraparietal sulcus, avoiding the optic radiations, and enter the ventricle.
Joseph MillerSuperior parietal lobule approach

Leave a Reply

Your email address will not be published. Required fields are marked *