In preserving S 1 anterior and posterior root intact combined with L 7 and S 2~3 posterior rhizotomies, CMG was similar to that of the free group,forming a spastic bladder.

• 保留同平面S1前后根的完整 ,其CMG曲线与完全不切断时的对照组相似 ,形成痉挛性膀胱 ;