Complete ankylosis of the vertebral bodies and facet joint sin keeping with ankylosing spondylitis.
Chalk-stick fracture at the C6/7 level with anterior translation of the superior spinal segment. The fracture line extends through the fused vertebral column, involving the superior endplate of C7, fused disc and posterior inferior endplate of C6. Further extension posteriorly through the fused C6/7 facet joints, lamina and base of the C6 spinous process. Further fractures through the spinous processes of C5 and C4.
Large posterior epidural haematoma extending from the mid C4 level to the mid T7 level, larger on the right side, causing severe canal stenosis and compression of the spinal cord.
Impression
C6/7 chalk-stick fracture in the setting of ankylosing spondylitis.
Large posterior epidural haematoma extending from C4-T7 with cord compression.
MRI advised to assess for cord injury.