...进作用 标：①手术后的不同时间神经传导速度(nerve conduction velocities，NCV)和坐骨神经功能指数(sciatic functional index，SFI)。②组织形态学评价。
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在术后行坐骨神经功能指数(SFI)，电生理学和小腿三头肌肌湿重检测。
Sciatic function index (SFI), electrophysiology and wet weight of muscles triceps surae were detected after surgery.
目的：利用组织工程方法制备的神经组织替代物桥接大鼠坐骨神经缺损，观察移植体的存活时间和神经功能指数。
AIM: to transplant a tissue engineered nerve substitute was into the sciatic nerve injury gap of rats so as to observe the survival time and nerve function index of the transplant.
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