But the main branch of ansa cervicalis nerve suture was superior to the other methods among which little difference was noted in the functional recovery, electrophysiological activity and muscle strength.

• 发现四种修复术均能使声带内收肌获得有效的再神经支配，但在声带内收功能恢复程度，电生理学参数和肌收缩力上，颈袢主支吻合术均明显优于分支吻合术、神经植入术及肌蒂植入术，并得到形态学检查的证实。