C/T Spine

Question 1

Jefferson Fracture

Answer 1

Compression fracture of C1 vertebra, where lateral masses split and the transverse ligament is torn.

Odontoid done

Question 2

Hangman’s Fracture

Answer 2

Fracture of the pars interarticularis of C2 on both sides

Aka floating head

Question 3

Subluxation

Answer 3

Partial dislocation

Question 4

Open mouth: if teeth below base of skull, error =?

Answer 4

Excessive flexion

Question 5

Open mouth: if base of skull superimposed over C1-C2, error=?

Answer 5

Over extension

Question 6

Skull alignment for AP axial

Answer 6

Extend skull until upper incisors at same plane as mastoid processes

Question 7

Centering and angling for AP axial?

Answer 7

CR 15-20 degrees cephalic at C4

Question 8

Set up for oblique

Answer 8

45 degree rotation of body-head turned parallel to IR.

CR 15 degree to C4
Caudad for RAO/LAO
Cephalic for RPO/LPO

Question 9

Proper name for swimmers

Answer 9

Cervicothoracic lateral

Question 10

Subluxation vs dislocation

Answer 10

S: partial dislocation

D: complete disruption of joint