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September 1974

Delayed Restoration of Abduction in the Paralyzed Canine Larynx

Author Affiliations

From the Department of Otolaryngology and Communication Sciences, State University of New York, Upstate Medical Center, Syracuse, NY.

Arch Otolaryngol. 1974;100(3):176-179. doi:10.1001/archotol.1974.00780040184005

A method for restoration of vocal cord abduction has potential application in cases of bilateral vocal cord paralysis or laryngeal transplants. Twelve dogs were divided into four groups of three each. One group was reinnervated at one-, two-, four-, and six-month intervals following denervation via the nerve-muscle technique. Restoration of abduction occurred in all animals ranging from 25% to 100%, nine weeks after reinnervation without mortality or apparent morbidity.

Our results indicate that restoration of spontaneous abduction may be achieved in dogs by the nerve-muscle pedicle technique up to six months after sectioning of the recurrent laryngeal nerve. Because this approach does not involve the recurrent laryngeal nerve and has very small attendant morbidity it might be reasonable to apply it in humans with bilateral cord paralysis shortly after injury.

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