"A laminectomy can be performed on all regions (lumbar, thoracic, and cervical) of the spinal column to relieve pressure on the spinal cord or the nerve roots. The lamina is the bony roof of the spinal canal. Laminectomy is the term used to refer to the process of removing the lamina (usually both sides). Removing the lamina increases the size of the spinal canal, giving more room for the spinal cord or nerve roots."
tcMMEP (to obtain a motor evoked potential).