Study Design. An analysis of pain behavior and neuronal apoptosis in the dorsal root ganglion (DRG) following crush injury to the L5 nerve root, with or without surgical sympathectomy.

• 研究设计：研究L5神经根受挤压伤后接受和不接受交感神经切除术时背根神经节（DRG)的疼痛表现和神经细胞的凋亡情况。