The Effect of Vocal Cord Paralysis on the Cricoarytenoid Joint

Vocal cord reinnervation using neuromuscular pedicle techniques have met with variable success. One of the limiting factors in this type of surgery is the status of the cricoarytenoid joint. In this pilot study we studied the effect of immobilization secondary to deinnervation in the rat. There were no significant joint changes in the animals operated on after periods of up to 11 months. This agrees well with reported successes of reinnervation procedure 20 years after laryngeal paralysis.

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Laryngeal Paralysis in Children

Annals of Otology Rhinology & Laryngology ◽

10.1177/000348948209100420 ◽

1982 ◽

Vol 91 (4) ◽

pp. 417-424 ◽

Cited By ~ 87

Author(s):

Seymour R. Cohen ◽

Kenneth A. Geller ◽

Jeffrey W. Birns ◽

Jerome W. Thompson

Keyword(s):

Statistical Analysis ◽

Vocal Cord ◽

Conservative Therapy ◽

Spontaneous Recovery ◽

Vocal Cord Paralysis ◽

Laryngeal Paralysis

The charts of 100 children with laryngeal paralysis were reviewed. The patients in this study had either unilateral or bilateral abductor vocal cord paralysis. The literature and pathophysiology are reviewed. A statistical analysis of each group of patients according to etiology is reported. The follow-up, progress and recovery are detailed. The need for observation and conservative therapy is reinforced by the tendency for spontaneous recovery. Suggestions regarding treatment are given.

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Laryngeal Paralysis Teflon® Injection

Annals of Otology Rhinology & Laryngology ◽

10.1177/000348947908800510 ◽

1979 ◽

Vol 88 (5) ◽

pp. 647-657 ◽

Cited By ~ 15

Author(s):

William W. Montgomery

Keyword(s):

Vocal Cord ◽

Vocal Cord Paralysis ◽

Postoperative Management ◽

Review Of The Literature ◽

Laryngeal Paralysis

This report is a review of the literature combined with the author's experience concerning Teflon injection of the larynx. Included are the etiology and diagnosis of vocal cord paralysis, indications and contraindications for Teflon injection of the larynx, its histopathology, pre- and postoperative management, proper and improper techniques for injecting Teflon, complications, and reasons for failure.

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Transmucosal Electrical Stimulation of Laryngeal Muscles

Annals of Otology Rhinology & Laryngology ◽

10.1177/000348948909800505 ◽

1989 ◽

Vol 98 (5) ◽

pp. 339-345 ◽

Cited By ~ 4

Author(s):

Ira Sanders ◽

Bei-Lian Wu ◽

Warren M. Kraus ◽

Jonathan E. Aviv ◽

Bruce Morel ◽

...

Keyword(s):

Electrical Stimulation ◽

Vocal Cord ◽

Vocal Cord Paralysis ◽

Bilateral Vocal Cord Paralysis ◽

True Vocal Cord ◽

Laryngeal Muscles ◽

Cricoarytenoid Joint ◽

Cricoarytenoid Arthritis ◽

A New Technique ◽

Stimulation Of

A new technique is described that enables discrete activation of individual laryngeal muscles by electrical stimulation across overlying mucosa. In 15 dogs, we defined six distinct motor points by transmucosal stimulation at 3 mA while observing the resulting characteristic position of the arytenoid and true vocal cord. Five dogs were then paralyzed with succinylcholine in order to simulate bilateral vocal cord paralysis. Application of a 3-mA stimulus at each motor point yielded no motion of the cords, but when the current was increased to 20 mA, characteristic responses were elicited. In five other dogs, botulinum toxin was injected directly into laryngeal muscles. Stimulation was used in an attempt to quantify the degree of neuromuscular blockade. In the last group of five dogs, we simulated cricoarytenoid arthritis by scarifying the joint. The extent and nature of the joint's impairment could be demonstrated by stimulation. Transmucosal stimulation appears promising as a clinical technique for correlating particular vocal cord movements and thresholds of activation with specific laryngeal disorders. Additionally, such a technique may be useful in clarifying how each laryngeal muscle acts upon the cricoarytenoid joint.

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