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May 18, 1940

PARALYSIS OF THE SERRATUS MAGNUS MUSCLECAUSED BY LESIONS OF THE LONG THORACIC NERVE

JAMA. 1940;114(20):1994-1996. doi:10.1001/jama.1940.02810200022006
Abstract

Unusual winging of the scapula is a deformity which is fairly well recognized as secondary in some instances to paralysis of the serratus magnus muscle. Description of this syndrome was first made by Velpeau1 in 1825. Sir Charles Bell2 in 1827 described the nerve supply of the serratus magnus muscle. The condition has been described by various writers since the time of Velpeau and Bell, notably by Marchessaux3 in 1840 and by Duchenne1 in 1867. Several methods of treatment have been suggested from time to time and several operative procedures have been offered. In order to estimate the relative incidence of this condition and to aid in our ability to prognosticate the end result in an instance of the disease newly seen, this study was undertaken.

The function of the serratus magnus muscle is mainly to aid in fixing the scapula to the thorax when the

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