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Retropulsion of a bone fragment in a benign VCF. Sagittal T1WI (A) and T2WI (B) with fat saturation of the lumbar spine demonstrate a retropulsed bone fragment (arrow) compressing the thecal sac and narrowing the spinal canal in this benign VCF (C), best seen on the axial T2WI. A similar appearance is demonstrated on the axial (D) and sagittal (E) reformatted thoracic spine CT scans.
