例1 女,26岁。产后尿潴留及失禁经治无效8个月住妇科,后因发现有会阴部感党减退转我科,产前无症状。检查:双侧S_(3～5)感觉减退,下肢运动正常,跟睫反射弱,肛门括约肌松弛。由L_(3、4)及L_(4、5)棘间腰穿均无脑脊液流出,改于L_(2、3)棘间穿刺成功,查脑脊液压力、蛋白量和细胞数均正常,压颈试验通畅。同时行脊髓造影,碘油上行通畅,下 Example 1 Female, 26 years old. Postpartum urinary retention and incontinence rule invalid 8 months of gynecology, later found to have perineal sensory dysfunction turned to our department, prenatal asymptomatic. Check: S_ (3 ~ 5) bilateral sensory loss, lower extremity movement is normal, with weak ciliary reflex, anal sphincter relaxation. There was no cerebrospinal fluid outflow from L_ (3,4) and L_ (4,5) interspace lumbar puncture, and the puncture of L_ (2,3) was changed successfully. The cerebrospinal fluid pressure, protein content and cell number were normal, Test unobstructed. Simultaneous myelography, lipiodol unobstructed, under