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February 1924

AN EXPERIMENTAL STUDY OF HYPERNEUROTIZATION

Author Affiliations

NEW YORK

From the Laboratory of Experimental Neurology, College of Physicians and Surgeons, Columbia University.

Arch NeurPsych. 1924;11(2):113-120. doi:10.1001/archneurpsyc.1924.02190320007002
Abstract

Neurotization of paralyzed muscle by direct implantation of a mixed nerve has been amply proved, both experimentally and clinically. This procedure has formed, in part, the basis of a new method whereby artificial nerve branches may be added to a nerve trunk and paralyzed muscle neurotized when the distal end of the artificial branch is implanted into the muscle.1 However the problem here studied is not, Can muscle without nerve supply be thus neurotized? but, Can muscle having its normal innervation be made to take on an additional and foreign nerve when such methods of direct nerve implantation are utilized? For example, Can the biceps muscle be innervated by the musculocutaneous and also, at the same time, by the ulnar nerve? a problem perhaps of less clinical application than of biologic significance.

Erlacher,2 in 1914, obtained hyperneurotization, but Steindler,3 in 1916, and others failed to find evidence

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