Background: Partial inner laryngeal muscle palsy can cause unilateral vocal fold paralysis (UVFP). Clinically, adductor branch paralysis of the recurrent laryngeal nerve (AdBP) is of greater concern than posterior cricoarytenoid muscle (PCA) paralysis, as the former condition can lead to voice impairment, and some patients require surgery. We previously reported that arytenoid adduction (AA) combined with PCA dissection nearly normalized the voice. However, we encountered two patients with AdBP who underwent only type 1 thyroplasty.
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Nishikawa et al. (2024) studied this question.
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