Gamma Knife radiosurgery is a method for treating certain problems in the brain without making an incision.
Using highly focused beams of radiation, a lesion (an area of controlled damage) is created in the root of the trigeminal nerve. Any patient with trigeminal neuralgia who has pain or has difficulty with the medicines used to relieve the pain is a candidate for stereotactic radiosurgery.
The procedure is painless and typically is done without anesthesia. A metal frame is attached to the patient's head and then an MRI is taken. Once the doctors have calculated the exact spot the patient is positioned into the Gamma Knife machine.
The nerve isn't burned as in a laser treatment, but the radiation causes the slow formation of a lesion in the nerve over a period of time to interrupt the pain transmission.
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