摘要
用１１只狗，分成实验组（７只）及对照组（４只），均切断左侧喉返神经和左侧喉上神经外支造成单侧喉麻痹。实验组将颈拌（舌下神经拌）主支的各亚分支植入声带内收肌中，对照组不作此神经修复术。６个月后行喉镜检查、喉肌电图检查、肌收缩力测定、组织化学检查及运动终板细胞化学电镜观察，证实实验组声带内收肌获得有效的再神经支配，声带内收为预计亚分支再神经支配的结果，未见吸气性声带内收现象。对照组声带内收肌无再神经支配征象。
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 sulpe- rior 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.ten- sion 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.
出处
《中华耳鼻咽喉科杂志》
CSCD
1994年第3期152-154,T028,共4页
Chinese Journal of Otorhinolaryngology
