II. Evaluation: Adequate film criteria

  1. Entire odontoid and lateral borders of C1-C2 seen
  2. C1-2 Fractures are very high risk and more common at the extremes of age (very young and old)

III. Evaluation: Alignment

  1. Lateral borders of c1 and c2 Vertebrae should line up
  2. Vertebral landmarks shifted in on one side
    1. Should be shifted out on other side

IV. Evaluation: Bony Margins

  1. Odontoid should have uninterrupted cortex to C2
  2. Odontoid view C1 and C2 should line up

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