Zheng H, Li Z, Zhou S
Changhai Hospital, Second Military Medical University, Shanghai.
Zhonghua Er Bi Yan Hou Ke Za Zhi. 1994;29(3):152-4.
The sub-branches of main branch of ansa cervicalis were cut and implanted into the thyroarytenoid and lateral cricoarytenoid muscles on the left side in 7 dogs after the recurrent and superior laryngeal nerves were sectioned on the same side. After six months, laryngoscopy showed that adduction of the vocal cord recovered in five post-operative cases. Adduction was caused by the reinnervated adductor muscles, as demonstrated by laryngeal electromyography, histologic studies, tension of contraction and electron microscopy for the neuro-muscular junctions. The present results demonstrated that the procedure seemed to produce satisfactory reinnervation of the adductor musculature.
在7只犬中，于一侧切断喉返神经和喉上神经后，将颈襻主支的分支切断并植入左侧的甲杓肌和环杓侧肌。6个月后，喉镜检查显示5例术后病例声带内收恢复。喉肌电图、组织学研究、收缩张力及神经肌肉接头的电子显微镜检查表明，内收是由重新获得神经支配的内收肌引起的。目前的结果表明，该手术似乎能使内收肌获得令人满意的神经再支配。
