Methods One side of sciatic nerve of 60 SD rats was treated by small gaps briding (experimental group), another side was treated by epineurial suture (control group).

• 方法：通过动物实验，对60只SD大鼠的一侧坐骨神经采用小间隙静脉桥接法吻合（实验组），另一侧用采用神经外膜吻合（对照组），观察神经修复效果。