Abstract
The stereotaxic approach to cerebellar surgery is becoming increasingly important in treatment of central nervous system motor disorders. At this time, the preferred target is the dentate nucleus for cases of muscular hypertonicity, particularly when spasticity is evident. A lesion of the dentate nucleus can also help to improve the various hyperkinesias. Bilateral symmetrical lesions may be performed in one session without involving undue side effects. The history of stereotaxic cerebellar surgery, the choice of target points and the peroperative neurophysiological exploration will be reviewed. The clinical effects of destruction of the dentate nucleus will be analyzed.

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