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Accidental Ingestion
Joseph Junewick, MD FACR
over 7 years ago
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ARSt Case Repository

Hyperextension Posterior Arch Fractures

Case Detail

Anatomy: Brain-Spine
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Trauma
Created: over 8 years ago
Updated: over 7 years ago
Tags:
Modality/Study Types: CT
Activities:
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History

Fell from bicycle, landing on face.


Case Images


Diagnosis

Hyperextension Posterior Arch Fractures

Findings

CT – Axial images show spinolaminar fractures of C4 and C5.

MR – Sagittal fat-suppressed T1, T2 and IR images show interspinous hemorrhage and edema from C3 through C6 and at T1-T2. Central T2 cord hyperintensity is related to chronic syrinx.

Discussion

Typically posterior arch fractures occur between the lateral masses and the spinous processes related to compression of the posterior elements in hyperextension.

Reference

Rao SK, Wasyliw C, and Nunez DB. Spectrum of imaging findings in hyperextension injuries of the neck. Radiographics 2005; 25:1239-1254.



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