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Physiologic motion after vocal cord reinnervation: A preliminary study
Author(s) -
Green David C.,
Berke Gerald S.,
Graves Michael C.,
Natividad Manuel
Publication year - 1992
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-199201000-00003
Subject(s) - recurrent laryngeal nerve , medicine , reinnervation , cord , anatomy , synkinesis , arytenoid cartilage , larynx , spinal cord , surgery , alternative medicine , thyroid , pathology , psychiatry , palsy
This study attempted to reestablish physiologic vocal cord motion, rather than synkinesis, to a rein‐nervated vocal cord. One mongrel dog underwent a division and reanastomosis of the anterior branch of the right recurrent laryngeal nerve and simultaneous separation and reimplantation of a posterior division nerve‐muscle pedicle into the posterior cricoarytenoid muscle. After 21 weeks, spontaneous physiologic vocal cord movement and electromyographic (EMG) activity were recorded during respiratory obstruction and laryngeal mechanical stimulation. Acoustic measures and histologic data are also presented from the reinnervated and normal vocalis muscle and from the recurrent laryngeal nerve. This study demonstrated that physiologic vocal cord motion can be achieved after laryngeal reinnervation using this technique.