4Ebraheim NA, Fow J, Xu R, et al. The location of the pedicle and pars interarticularis in the axis[J]. Spine, 2001,26(4): E34-E37.
5Borne GM, Bedou GL, Pindaudeau M. Treatment of pedicular fractures of the axis. A clinical study and screw fixation technique [J]. J Neurosurgery, 1984, 60(1):88-93.
6Yarbrough BE, Hendey GW. Hangman's fracture resulting from improper seat belt use[J].South Med J, 1990,83(7):843-845.
7Gehweiler JA, Martinez S, Clark WM, et al. Spondylolisthesis of the axis vertebra[J]. Am J Roentgenol, 1977,128:682-684.
8Zsolczai S, Pentelenyi T. The modem approach of Hangman's fracture[J].Acta Chit Hung, 1990; 31 (1): 3-24.
9Teo EC, Paul JP, Evans JH,et al. Biomechanical study of C2 (Axis)fracture: effect of restraint [J]. Ann Acad Med Singapore, 2001, 30(6): 582-587.
10Subach BR, Morone MA, Haid RW Jr, et al. Management of acute odontoid fractures with single-screw anterior fixation[J] . Neuro- surgery, 1999, 45(4): 812-819.