Spinal Trauma

Question 1

In trauma, anterior cord syndrome is secondary to ____.

Answer 1

hyperflexion injury

Question 2

In trauma, central cord syndrome is generally secondary to ______.

Answer 2

hyperextension injury

Question 3

What is the role for steroids in nonpenetrating spinal cord injury?

Answer 3

methylprednisolone 30 mg/kg over 1 hour, followed by 5.4 mg/kg/hour for 23 hours if started within 3 hours of the injury or for 47 hours if started between 3 and 8 hours of injury to help decrease secondary injury

Question 4

In AO dislocation, what is the Power’s ration? Dens-basion distance?

Answer 4

> 1

12 mm

Question 5

What is the Power ratio?

Answer 5

distance of the basion (B) to the posterior arch of the atlas (C) divided by the distance of the anterior arch of the atlas (A) to the opisthion (O)

Question 6

What is a Jefferson’s fracture? Stable or unstable?

Answer 6

b/l fx through the anterior and posterior arches of C1

stable unless transverse ligament disrupted

Question 7

Rotary atlantosubluxation is when ______ and is associated with _______.

Answer 7

C1 rotated over 45 degrees over C2

flexion injuries, RA, Tonsilitis/pharyngitis (Grisel’s syndrome)

Question 8

Hangman’s fracture is _____ and is caused by ______.

Answer 8

C2 traumatic spondylolisthesis with b/l pars fxs

hyperextension