Type of Surgery
Last updated: 11/24/2009
Rhizotomy is performed under general anesthesia. The patient lies face down. An incision is made along the lower spine, exposing the sensory nerve roots at the center the spinal cord. Individual nerve rootlets are electrically stimulated. Since these...
are sensory nerves, they should not stimulate muscle movement. Those that do (and therefore cause spasticity) are cut. Typically, onequarter to one-half of nerve rootlets tested are cut.
This narrated 3D animation shows the step-by-step process for removing a brain tumor using a new device called a neuroendoport. It is considered a minimally invasive brain surgery because the neuroendoport device requires a relatively small incision in the skull and underlying dura mater (covering of the brain).
A rhizotomy (É¹aÉªËˆzÉ‘tÉ™mi) is a neurosurgical procedure that selectively severs problematic nerve roots in the spinal cord, most often to relieve the symptoms of neuromuscular conditions such as spastic diplegia and other forms of spastic cerebral palsy. In extreme cases, a rhizotomy may also be considered for a person suffering from severe back pain or a pinched nerve.
The sensory nerve roots are first separated from the motor ones. Identification of the nerve fibers to be cut is then made by means of electrical stimulation. The one(s) producing the pain or other problems are identified in this way, then selectively cut.
Surgery for removal is generally advised for patients with limited cancer elsewhere in the body and a single brain metastasis.
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