Chance fracture: Difference between revisions

Revision as of 12:41, 24 October 2020

Common mechanism: seat belt serves as axis of rotation with failure of middle and posterior columns
Most common at T12-L2 due to spinal curvature and mechanism
Pure bony injury from posterior to anterior through:
- Spinous process
- Pedicles
- Vertebral body
Unstable
Seat Belt Injury: lap belt worn above the pelvic bones without a shoulder harness
Mechanism: minor anterior vertebral compression with failure of the middle and posterior columns
May be misdiagnosed as anterior compression fracture, which is usually stable
Intra-abdominal injuries more commonly associated than neuro deficits
Obtain sagittally reconstructed CT if suspect lap-belt mechanism or flexion-distraction

Authors:

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-#REDIRECT[[Thoracic_and_lumbar_spine_trauma#Chance_Fracture|Chance Fracture]]
+====[[Chance fracture]] (Flexion-distraction injuries)====
+*Common mechanism: seat belt serves as axis of rotation with failure of middle and posterior columns
+*Most common at T12-L2 due to spinal curvature and mechanism
+*Pure bony injury from posterior to anterior through:
+**Spinous process
+**Pedicles
+**Vertebral body
+*Unstable
+*Seat Belt Injury: lap belt worn above the pelvic bones without a shoulder harness
+*Mechanism: minor anterior vertebral compression with failure of the middle and posterior columns
+*May be misdiagnosed as anterior compression fracture, which is usually stable
+*Intra-abdominal injuries more commonly associated than neuro deficits
+*Obtain sagittally reconstructed CT if suspect lap-belt mechanism or flexion-distraction