MRI
Paravertebral haematomas anteriorly and laterally (on both sides) at T1-T2 levels extending below the scan field-of-view, and posterior to the C7 vertebral body extending behind the C6 vertebral body. The spinal cord is kinked at the C7 level and markedly oedematous, with ill-defined abnormal T2 signal extending from C4/C5 to T1/T2 level.
There are extensively comminuted fractures through the C2 vertebra, through the base of the odontoid process and both articular processes (extending to the transverse foramina) with abnormal widening of the C2/C3 facet joints (right more than left) suggesting disruption. Minimally displaced fracture through the C1 posterior arch. No appreciable cord oedema at the C1-C2 levels or the craniocervical junction. There is anterior epidural haemorrhage measuring up to 4mm in AP depth extending from C2 to C4/C5.
There is extensive prevertebral soft tissue swelling, and widespread oedema in and between the paravertebral muscles of the neck.