4Grauer JN,Shafi B ,Hilibrand AS, et al. Proposal of a modified,treatment-oriented classification of odontoid fractures[J]. Spine J,2005,5(2) : 123-129.
5Anderson LD,D'Alonzo RT. Fractures of the odontoid process of the axis[J].J Bone Joint Surg Am, 1974,56(8) : 1663-1674.
6Hadley MN,Browner CM,Liu SS,et al. New subtype of acute odontoid fractures (type Ⅱ A) [J] Neurosurgery, 1988,22 (1) : 67-71.
7Jeanneret B,Magerl F. Primary posterior fusion C1/2 in odontoid fractures:indications,technique,and results of transarticular screw fixation[J].J Spinal Disord,1992,5(4):464-475.
8Maak TG,Grauer JN. The contemporary treatment of odontoid injuries[J].Spine ,2006 31 ( 11 ) :S53-S60.
