Table 2.

Classification of C1 and C2 Fractures.

Type of Fracture	No. of Patients (% of Total)
C1 Jefferson type I	1 (0.8)
C1 Jefferson type III	1 (0.8)
C1 Jefferson displaced	1 (0.8)
C1 Nondisplaced	1 (0.8)
C2 Unspecified	20 (16.5)
C2 Nondisplaced	2 (1.6)
C2 Odontoid type II	10 (8.3)
C2 Odontoid type III	20 (16.5)
C2 Hangman’s unspecified	10 (8.3)
C2 Hangman’s type I	5 (4.1)
C2 Hangman’s type II	7 (5.8)
C2 Hangman’s type III	1 (0.8)
C2 Hangman’s atypical	4 (3.3)