Abstract
Summary The value of functional neurosurgery in the treatment of motor movement disorders is emphasized. The two methods of stereotactic procedures, namely a destructive one with small lesions centered on specific targets, and a non-destructive one with chronically inserted electrodes connected with an also implanted programmable neuropacemaker are described in detail. The results in Parkinsonian tremor, essential tremor, tremor of multiple sclerosis, post-traumatic tremor and in other involuntary movement disorders are reported and demonstrate that stereotactic neurosurgical treatment of these conditions is a safe and efficacious method.