Effects of Arytenoid Adduction on Laryngeal Function Following Ansa Cervicalis Nerve Transfer for Vocal Fold Paralysis in an In Vivo Canine Model

The biomechanics of arytenoid adduction surgery are not well understood. An excised canine larynx model was used to study the effects of variable suture tension on glottal configuration and on vocal fold tension (at the midfold and the vocal process). Arytenoid adduction both medializes the vocal fold and closes a posterior glottal chink. Vocal fold tension at the midfold did not vary significantly with suture tension. As suture tension increased to approximately 100 g, vocal fold tension at the vocal process also increased. Beyond 100 g of suture tension, vocal fold tension at the vocal process did not increase. We conclude that the effects of suture tension on the resistance to lateral movement are different at the midfold compared to the vocal process. Procedures for surgical rehabilitation of vocal fold paralysis should address the biomechanical subunits of the larynx individually in order to achieve optimum results.

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Vocal Fold Medialization by Surgical Augmentation versus Arytenoid Adduction in the in vivo Canine Model

Annals of Otology Rhinology & Laryngology ◽

10.1177/000348949110000404 ◽

1991 ◽

Vol 100 (4) ◽

pp. 280-287 ◽

Cited By ~ 20

Author(s):

David C. Green ◽

Gerald S. Berke ◽

Paul H. Ward

Keyword(s):

Vocal Fold ◽

Canine Model ◽

Arytenoid Adduction

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Longitudinal Follow-Up Arytenoid Adduction and Ansa Cervicalis Transfer with Unilateral Vocal Fold Paralysis

The Japan Journal of Logopedics and Phoniatrics ◽

10.5112/jjlp.54.8 ◽

2013 ◽

Vol 54 (1) ◽

pp. 8-13

Author(s):

Narihiro Kodama ◽

Tetsuji Sanuki ◽

Eiji Yumoto

Keyword(s):

Vocal Fold ◽

Vocal Fold Paralysis ◽

Unilateral Vocal Fold Paralysis ◽

Ansa Cervicalis ◽

Arytenoid Adduction

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Treatment of unilateral vocal fold paralysis with ansa cervicalis to recurrent nerve anastomosis in a young adolescent: European case report

The Journal of Laryngology & Otology ◽

10.1017/s0022215118001007 ◽

2018 ◽

Vol 132 (7) ◽

pp. 661-664 ◽

Cited By ~ 5

Author(s):

C van den Boer ◽

A L Wiersma ◽

J P Marie ◽

J T van Lith-Bijl

Keyword(s):

Case Report ◽

Treatment Option ◽

Vocal Fold ◽

Voice Quality ◽

Nerve Transfer ◽

Analysis Data ◽

Vocal Fold Paralysis ◽

Recurrent Nerve ◽

Unilateral Vocal Fold Paralysis ◽

Ansa Cervicalis

AbstractBackgroundLaryngeal re-innervation in paediatric unilateral vocal fold paralysis is a relatively new treatment option, of which there has been little reported experience in Europe.MethodsIn this European case report of a 13-year-old boy with dysphonia secondary to left-sided unilateral vocal fold paralysis after cardiac surgery, the patient underwent re-innervation using an ansa cervicalis to recurrent laryngeal nerve transfer, in combination with fat augmentation, after 12 years of nerve denervation. Perceptual analysis data, and acoustic and laryngoscopy recordings were acquired pre-operatively, and at one and two years post-operatively.ResultsThe patient's perceptual voice quality was improved. He experienced subjective improvement and is very satisfied with the result. As expected, laryngoscopy at one and two years after surgery showed no physiological mobility of the vocal fold concerned, but improved closure during phonation was achieved. Electromyography showed evidence of re-innervation.ConclusionLaryngeal re-innervation could be considered as a treatment option for unilateral vocal fold paralysis in children and adolescents, even after a long-term delay.

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