Try it
Orthopaedics · Spine: burst fracture
Sample itemA man falls from a ladder and has severe back pain. CT of L1 shows a vertebral body fracture with retropulsion of fragments into the canal and he has lower limb weakness. Which column is characteristically involved that distinguishes it from a wedge fracture?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Middle column
A burst fracture involves failure of the anterior and middle columns under axial load, with posterior vertebral body fragments retropulsing into the canal. A wedge compression fracture involves only the anterior column. CT is the best imaging and surgery is considered with deficit or instability.
Option by option
A. Posterior column only
Posterior-only failure is rare.
B. No column
Fractures always involve some column.
C. Middle column (correct)
Correct. Middle column failure with retropulsion defines a burst fracture.
D. Anterior column only
Anterior-only failure is a wedge fracture.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
More Orthopaedics questions
- Upper limb fracturesWhich complication is characteristic of a fracture through the waist of the scaphoid?
- Fractures in childrenA child with a displaced supracondylar fracture of the humerus develops a painful, pale…
- Bone tumoursA teenager has knee pain and a radiograph around the distal femur showing a sunburst per…
- HipA positive Trendelenburg sign is due to weakness of the gluteus medius and minimus. Whic…