"Muscle group isolation" is a term applied to a method devised by Schwab and Allison1 for the treatment of athetoses and spasticities. "This implies the isolation of the muscle or group of muscles which are at fault in the production of contracture, deformity or athetosis." The isolation is accomplished by the injection of 80 per cent. alcohol into the nerve supplying the muscle or group of muscles. A paralysis of the physiologically stronger group of muscles results and at this point physiologic exercises and educational methods are made possible. Schwab and Allison have used this method in the treatment of athetoses, spasticities and deformities which follow anterior poliomyelitis and tic. Their contentions are that there is, first, a paralysis of the overacting muscle or group of muscles and a disappearance of spasticity and athetosis and, second, a gradual return of function in the paralyzed muscles, without a recurrence of
POLLOCK LJ, JEWELL EB. MUSCLE GROUP ISOLATION IN THE TREATMENT OF SPASTICITIES AND ATHETOSES. JAMA. 1912;LIX(19):1711–1712. doi:10.1001/jama.1912.04270110125019
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