C-Spine

Question 1

Identify the features of the first and second cervical vertebra (C1 & C2) which make them atypical vertebra.

Answer 1

C1- Altas. Ring of bone. Lateral masses. No Body. No Intervertebral discs. No Spinous process. Articulations for C2 and occiput. C2-Axis. Odontoid process - Dens. Bifid spinous processes

Question 2

Name the vertebra which might be involved in a hangman’s fracture?

Answer 2

C2.

Question 3

Describe the radiographic features of a hangman’s fracture.

Answer 3

1. Pre-vertebral soft tissue swelling. 2. Damage of the anterior longitudinal ligament. 3. Anterior dislocation of the C2 vertebral body. 4. Bilateral C2 pars interarticularis fractures.

Question 4

Name the vertebra which might be involved in a burst fracture.

Answer 4

C1

Question 5

Describe the radiographic features of a burst fracture.

Answer 5

1. Compression fracture of the bony ring. 2. Lateral displacement of the lateral masses of C1. 3. beyond the margins of the body of C2.