Hemihypoglossal-facial nerve anastomosis in treating acute facial palsy

首先，用20只狗观察运动神经(胸背神经)切除后背阔肌萎缩的情况。但运动神经是多支的，不能进行单索的半胸背手术。神经纵向剥离后也未见肌肉萎缩，因此，下一阶段以另外20条犬舌下神经为材料。行舌下神经-面神经吻合术(分离的舌下神经与面神经吻合术)。多数病例术后面部运动恢复情况好于对照组，舌肌萎缩程度也较对照组轻。舌下神经移位清除后在缺损处移植神经，临床上也进行了神经移植，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.