Hemihypoglossal-facial nerve anastomosis in treating acute facial palsy

本实验首先用20只狗观察了运动神经（胸背神经）切断后背阔肌的萎缩情况。然而，运动神经是由多条索组成的，单根索的半胸背侧手术是不可能的。神经纵行解剖后也未发现肌肉萎缩，因此，下一步，我们用另外20条狗的舌下神经作为材料。行半舌下神经-面神经吻合术（舌下神经与面神经吻合）。大部分病例术后面功能恢复优于对照组，舌肌萎缩程度也较对照组轻。临床病例中，由于舌下神经移位后缺损处的神经被清除，因此，在此部位也进行了神经移植，取得了良好的效果。

At first, twenty dogs were used ot investigate the atrophy of lattisimus Doris muscle after the resection of the motor nerve (thoracodorsal nerve). However the motor nerve was consistedn of multiple funiculi, the hemithoracodorsal procedure of one funiculus was not possible. The atrophy of the muscle was not also found after the longitudinal dissection of the nerve.Therefore, at the next stage, other twenty dogs' hypoglossal nerves was used as the materials. Hemihypoglossal-facial nerve anastomosis (anastomosis of a split hypoglossal nerve to the facial nerve) were done. Postoperative recovery of facial movement was better in most of the cases than that of the control groups., and the atrophy of the tongue muscle also less than the control groups. Nerve graft at the defect after thehypoglossal nerve traspositon was cleared up and therefore, the nerve graft at the portion was also done in clinical cases and got a good results.