In rhizotomy of S 1 anterior root combined with L 7 and S 2~3 posterior roots, CMG was similar to that of the complete L 7 to S 3 posterior rhizotomy group, forming a flaccid bladder.

• 切断S1前根 ,其CMG曲线与切断全部后根的对照组相似 ,形成弛缓性膀胱。