The nerve conduct velocity (NCV) and the peak value of action potenial (AP) were evaluated by PCLAB. Results The NCV and AP between two groups have very significant differences on days 14,21,28 after nerve crush.

• 术后第14、21、28、42天对坐骨神经进行电生理功能指标观察,包括神经传导速度(NCV)、动作电位(AP)峰值等。