TREATMENT OF ATHETOSIS AND DYSTONIA BY SECTION OF EXTRAPYRAMIDAL MOTOR TRACTS

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Abstract
There is perhaps no group of diseases more distressing to patient, relatives and physicians than that characterized by constantly recurring involuntary abnormal movements—the dyskinetic or amyostatic syndrome, in which are included the major choreas, athetosis, torticollis and the dystonias. Though the incidence of these diseases is not high, many of them are chronic. Knowledge of the pathology, physiology and clinical classification of the amyostatic diseases leaves much to be desired. An extensive clinical study by means of motion pictures has recently been published by Herz,1and a detailed review of the literature on the pathology by Spatz.2Nothing is added to these aspects of the subject by the cases here reported. To account for the abnormal movements on a physiologic basis, several different theories have been proposed: 1. The abnormal movements are due to impulses coming down over the pyramidal pathways either as a result of direct irritation

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