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Functional Reinnervation of Vocal Cords After Selective Laryngeal Adductor Denervation-Reinnervation Surgery for Spasmodic Dysphonia



Functional Reinnervation of Vocal Cords After Selective Laryngeal Adductor Denervation-Reinnervation Surgery for Spasmodic Dysphonia







Selective laryngeal adductor denervation-reinnervation surgery (SLAD-R) offers a viable surgical alternative for patients with adductor spasmodic dysphonia refractory to botulinum toxin injections. SLAD-R selectively denervates the symptomatic thyroarytenoid muscle by dividing the distal adductor branch of the recurrent laryngeal nerve (RLN), and preventing reinnervation, by the proximal RLN and maintaining vocal fold bulk and tone by reinnervating the distal RLN with the ansa cervicalis. We present a patient who had previously undergone successful SLAD-R but presented 1 years postoperatively with a new regional dystonia involving his strap muscles translocated to his reinnervated larynx by his previous ansa-RLN neurorraphy. The patient s symptomatic vocal cord adduction resolved completely on division of the ansa-RLN neurorraphy confirming successful selective functional reinnervation of vocal cord adductors by the ansa cervicalis.

Accession: 036386738

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