1[1]Moskovich R, Shott S, Zhang ZH. Does the cervical canal to body predict spinal stenosis? Bull Hosp Jt Dis, 1996,55:61-71
2[2]Sasaki T, Kadoya S,Tizuka H. Roentgenological study of the sagittal dianeter of the cervical spinal canal in normal adult Japanese. Neurol Med Chir (Tokyo), 1998,38: 83-89
3[3]BeyT, Waer A, Walter FG, et al. Spinal cord injury with a narrow spinal canal: utilizing Torg' s ratio method of analyzing cervical spine radiogpraphs. J Emerg Med, 1998, 16:79-g2
4[4]Yoshida M,Tamaki T, Kawakami M, et al. Indication and clinical results of laminoplasty for cervical myelopathy caused by disc hemiation with developmental canal stenosis. Spine, 1998,15: 23: 2391-2397
6[6]Hirabayashi K,Toyama Y, Chiba K. Expansive laminoplasty for myelopathy in ossification of longitudinal liganent. Clin Orthop, 1999,359:35-48
7[7]Wang JM,et al.A new method of stabilising the elevated laminae in open door laminoplasty using an anchor system. J Bone Joint Sury(Br), 1998,80:1005-1008
8[8]Torg JS,Pavlov H, Genoario SE.et al. Neurapriaxia of the cervical spinal cord with transient quadriplegia. J Bone Joint Surg(Am), 1986,68:1354-1357
9[9]Pavlor H, Torg JS, Robie B, et al. Cervical spinal stenosis: Detennination with vertebral body ratio method. Radiology, 1987,164: 77 1-775