Flexion teardrop fracture of C2

Discussion:

The mechanism of the trauma caused a combination of flexion and compression leading to a teardrop fragment at the anteroinferior corner of C2, bilateral C2 lateral mass fractures, and a consequent tilt of C2/dens and anterior displacement of C1 with a mild widening of the C1/2 interspinous distance. 

Although this case shows features of a flexon injury at C2, the flexion teardrop fractures of the cervical spine are known to commonly affect the lower levels (C5 and C6 vertebral bodies), with the extension teardrop fractures commonly affecting C2. 

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