Lumbar/Thoracic Spine

Question 1

define the columns of spine

Answer 1

he anterior column is comprised of the anterior two thirds of the vertebral body, including the anterior longitudinal ligament.
• The middle column consists of the posterior third of the vertebral body and the posterior longitudinal ligament.
• The posterior column represents the posterior elements and the posterior ligaments (consisting of the supraspinous and infraspinous ligaments, and the ligamentum flavum).

Question 2

Chance fracture MOA

Answer 2

flexion distraction injury or seat belt fracture

horizontal splitting of the vertebra in the spinous process/lamina into the vertebral body anteriorly

Question 3

spondylolysis

Answer 3

fracture of pars interarticularis; chronic stress or acute fracture

Question 4

XR findings of spondylolysis

Answer 4

scotty dog defect on oblqiues

can lead to spondylolisthesis (subluxation of vertebral bodies)