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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将各神经功能缺损量表评分值与三个月后日常生活指数（BI）进行相关分析，评定效度；

Predictive validity was assessed by correlative analysis between their scores and the Barther Index (BI) at the end of the third month after onset.

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