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【单选题】
男性,27岁,3天前搬重物后感腰痛,伴右下肢放射痛,咳嗽、喷嚏时症状加重,不能下床活动,以前无类似发作史。查体:腰椎生理弧度消失,活动明显受限,直腿抬高仅达40°,加强试验阳性,右足外侧踝部皮肤感觉过敏,右跟腱反射减弱,X线除腰椎生理弧度消失外,未见其他异常,尿常规正常。 医师在分析病情时下列哪一项是错误的A.
腰5神经根受压常表现有伸踇肌力减弱
B.
腰5、骶1椎间盘突出通常是骶1神经根受压
C.
腰5、骶1椎间盘突出，感觉异常外踝部和足外侧
D.
踝反射异常表示腰5神经根受压
E.
胫前肌肌力减弱常见于腰3—4椎间盘突出
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