from Section 3 - Trauma
Published online by Cambridge University Press: 15 November 2019
A 53-year-old man was involved in a road traffic accident. He was driving the car and was wearing a seat belt. This is the radiograph obtained in casualty (Figure 15.1a). What does it show?
This is a plain lateral radiograph of the cervical spine that shows anterior translation of the C6 vertebra on C7. This translation is more than 25% so this is likely a bifacet dislocation. The inferior facets of C6 can be seen to lie anterior to the superior facets of C7. This is a bifacet dislocation. The C7/T1 border is not clearly seen and therefore this is an inadequate radiograph.
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