Sciatica is pain, tingling, or numbness produced by an irritation of the nerve roots that lead to the sciatic nerve.The sciatic nerve is formed by the nerve roots coming out of the spinal cord into the lower back. It goes down through the buttock, then its branches extend down the back of the leg to the ankle and foot.ciatica is pain, tingling, or numbness produced by an irritation of the nerve roots that lead to the sciatic nerve.
prefrontal lobotomy - surgical interruption of nerve tracts to and from the frontal lobe of the brain; often results in marked cognitive and personality changes. frontal lobotomy, leucotomy, leukotomy, lobotomy, prefrontal leucotomy, prefrontal leukotomy.
Rating Newest Oldest. Best Answer: Years ago, violent mental patients were given a lobotomy. It was a very crude procedure where an ice pick like tool was forced into the eye socket to penetrate the frontal lobe of the brain.The desired result was to interrupt the aggression, rendering the patient docile.eport Abuse. it is to physically look at the area of the brain that is causing problems which scans can miss. they can work or the problem could be elsewhere. a lobotomy is a type of brain surgery, and the outcomes are all different.