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Atlantoaxial subluxation

Case contributed by David Clemo Steel
Diagnosis almost certain

Presentation

Congenital subluxation.

Patient Data

Age: 25 years
Gender: Male

Cervical spine

ct

The left anterior facet of C1 is fixed on the facet of C2, with anterior displacement of the right anterior facet. The right odontoid space with the axis is widened.

C1 is not oriented with C2, but actually rotated.

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