患者张××,男,41岁。于1985年11月1日在某厂职工医院行(?)残冠拔除术,术中将冠取出,挺根时患者突感同侧头面,颈部疼痛,并沿肩向对侧肢体传导至足心剧烈疼痛,以致身体扭曲,即中止手术,经会诊以拔牙剧痛收住我科。住院时患者不能站立,由他人搀扶,面色苍白, Zhang × × patients, male, 41 years old. In November 1, 1985 in a factory workers Hospital (?) Residual crown removal surgery, the crown will be removed, very rooted when the patient suddenly felt the ipsilateral head and neck pain, and contralateral limbs along the shoulder conduction to Zuxin severe pain, resulting in body distortion, that is, stop the operation, the consultation to pull a tooth pain admitted to our department. Patients can not stand hospitalized, helped by others, pale,