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1 临床资料 患者,男性,58岁,入院前14年起活动时腰部疼痛,无放射痛,能够耐受,不影响工作和生活,外院诊断为腰椎肥大及腰椎间盘突出,长期对症治疗,症状无明显缓解。入院前7月起双足底麻木,逐渐出现双下肢无力,行走不稳,小便失禁,大便秘结。查体:双下肢肌力3～4级,肌张力降低,双侧膝腱反射、跟腱反射减弱,L_5神经分布区痛、触觉减退,余神经系统未见异常。L_(4,5)间隙穿刺,见脑脊液呈淡黄色,体外自凝,Queckenstedt试验提示珠网膜下腔完全阻塞。腰椎正侧位
1 clinical data of patients, male, 58 years of age, 14 years before admission since the activities of the waist pain, no radiating pain, can tolerate, does not affect the work and life, the outer hospital diagnosed as lumbar hypertrophy and lumbar disc herniation, long-term symptomatic treatment, symptoms Clearly relieved. Pre-hospitalized from July before the numbness of both feet, gradually weak legs, walking instability, urinary incontinence, constipation. Examination: lower extremity muscle strength of 3 to 4, lower muscle tone, bilateral knee tendon reflexes, Achilles tendon reflexes, L_5 nerve distribution of pain, loss of touch, the remaining nervous system without exception. L_ (4,5) interstitial puncture, see the cerebrospinal fluid was light yellow, self-coagulation in vitro, Queckenstedt test prompted complete obstruction of the subretinal space. Lumbar lateral position