患儿男,10岁,因后背疼痛伴双下肢麻木2天入院。患者入院前2天无明显诱因下出现背部间断性疼痛,每次持续几秒钟至几分钟后能自行缓解。疼痛一天后出现双下肢麻木,随后出现双下肢行走不能,平卧及休息均不能缓解。查体:神清,精神可,心肺听诊无明显异常,脊柱生理性弯曲存在,双上肢肌张力正常,肌力Ⅴ级,双下肢肌张力正常,肌力Ⅳ级,病理征未引出。查磁共振成像(MRI)示C7～T5水平 Male, 10 years old, with back pain and numbness of lower extremities 2 days admitted. The patient had intermittent back pain with no obvious cause 2 days prior to admission, which relieved spontaneously after a few seconds to minutes. Two days after pain, numbness of both lower extremities, followed by walking both lower extremities, lying and rest can not be alleviated. Physical examination: God clear, the spirit can be, no significant cardiopulmonary auscultation, spinal curvature exists, double upper limb muscle tone is normal, muscle grade Ⅴ, normal muscle tone, muscle strength grade Ⅳ, the pathological sign did not lead. Magnetic resonance imaging (MRI) showed C7 ~ T5 levels