前筋側筋縫合による麻痺声帯の再運動化

概要

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A new method of dynamic reconstruction by suturing cricothyroid and lateral. Cricoarytenoid muscles was devised for the treatment of hoarseness and dysphagia due to unilateral recurrent laryngeal nerve paralysis.Five adult dogs underwent section of a recurrent laryngeal nerve, and unilateral vocal cord paralysis was proved by fiberscope.The pars recta of the ipsilateral cricothyroid muscle was dissected from the thyroid cartilage. The median portion of the cricoid cartilage was cut, and the incision was extended laterally. Then the lateral cricoarytenoid muscle was exposed and detached from the cricoid cartilage. The free ends of both muscles were sutured, and finally, the cricoid cartilage was re-sutured.Immediate postoperative observation during phonation revealed movement of the affected cord, which was adducted to reach the midline in all five dogs. Three weeks later, examination of one of the dogs revealed that adequate adduction was still present.Since the muscles lie close together, this method is simple and consists of very few steps. Remobilization is prompt and persistent. Therefore, the clinical application of this method may serve as a new dynamic reconstruction for unilateral recurrent laryngeal nerve paralysis.
耳鼻咽喉科臨床学会の論文