Alignment
Disruption in the anterior, posterior, or spinolaminal lines
Bones
Obvious fracture
Disruption of ring of C1
Double facet sign indicates fractured articular facet
Loss of vertebral height
Cartilage
Intervertebral disc space height and length should be uniform
Narrowing: disc herniation or adjacent vertebral fracture
Widening: posterior ligamentous injury
Soft tissue
Widening of the prevertebral soft tissue suggests fracture
Disruption in the anterior, posterior, or spinolaminal lines
Obvious fracture
Disruption of ring of C1
Double facet sign indicates fractured articular facet
Loss of vertebral height
Intervertebral disc space height and length should be uniform
Narrowing: disc herniation or adjacent vertebral fracture
Widening: posterior ligamentous injury
Narrowing: disc herniation or adjacent vertebral fracture
Widening: posterior ligamentous injury
Widening of the prevertebral soft tissue suggests fracture
Cervical spine x-ray interpretation
Chest x-ray interpretation
Canadian cervical spine rule
X-ray interpretation 
Neck diagnoses
Tongue diagnoses
NEXUS cervical spine rule
Predicting the difficult airway