Lumbar spine trauma. A 35-year-old man presented to the emergency department after a motor vehicle accident. He complained of back pain without paresthesias or weakness of his lower extremities. Sagittal reformatted CT image demonstrates fracture of the anterior L1 vertebral body with a posterior fragment displaced into the spinal canal (black arrow). The fracture extended into the spinous process (yellow arrow). A second fracture in the L3 vertebral body is noted in the posterior aspect of the inferior endplate of the L3 (white arrow).

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