Fig. 23
From: MDCT of acute subaxial cervical spine trauma: a mechanism-based approach
Avulsion fracture in hyperextension dislocation. Sagittal CT image shows an avulsion fracture at the anterosuperior end plate of C7 (white arrow), with the transverse diameter wider than the vertical diameter. Avulsion of the posteroinferior corner of the C6 vertebral body is also seen (black arrow), which suggests avulsion of the posterior annulus or PLL