Morizono Y, Sakou T, Maehara T
Clin Orthop Relat Res. 1987 Mar(216):120-3.
A congenital defect of the posterior elements (spinous process and vertebral arch) of the axis was observed in a 20-year-old man. This anomaly was detected by coincidence during roentgenographic study of the cervical spine for the investigation of headaches and neck pain following trauma. The clinical symptoms were relieved by conservative therapy, and the patient returned to a normal life.
在一名20岁男性中观察到枢椎后部结构（棘突和椎弓）的先天性缺陷。该异常是在对颈椎进行X线检查以调查创伤后头痛和颈部疼痛时偶然发现的。临床症状通过保守治疗得到缓解，患者恢复了正常生活。
