II. Evaluation: Adequate film criteria
- Entire odontoid and lateral borders of C1-C2 seen
- C1-2 Fractures are very high risk and more common at the extremes of age (very young and old)
III. Evaluation: Alignment
IV. Evaluation: Bony Margins
- Odontoid should have uninterrupted cortex to C2
- Odontoid view C1 and C2 should line up