Fracture of the C2 pedicle region is known as?

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Multiple Choice

Fracture of the C2 pedicle region is known as?

This question tests recognition of a hangman fracture, which is the fracture pattern at the axis (C2) involving the pars interarticularis on both sides. It usually results from a hyperextension injury with some axial loading, causing both pars interarticularis fractures and often anterior displacement of the C2 body relative to C3. Imaging typically shows a bilateral pars fracture of C2 and can show some forward slipping of C2, reflecting instability from disruption of the posterior elements and ligaments. This is distinct from other injuries: a Jefferson fracture is a burst fracture of the C1 ring due to axial loading; a Clay shoveler fracture involves the spinous process, usually in the lower cervical spine; and a teardrop fracture is an anterior-inferior corner fracture of a vertebral body from flexion.

This question tests recognition of a hangman fracture, which is the fracture pattern at the axis (C2) involving the pars interarticularis on both sides. It usually results from a hyperextension injury with some axial loading, causing both pars interarticularis fractures and often anterior displacement of the C2 body relative to C3. Imaging typically shows a bilateral pars fracture of C2 and can show some forward slipping of C2, reflecting instability from disruption of the posterior elements and ligaments.

This is distinct from other injuries: a Jefferson fracture is a burst fracture of the C1 ring due to axial loading; a Clay shoveler fracture involves the spinous process, usually in the lower cervical spine; and a teardrop fracture is an anterior-inferior corner fracture of a vertebral body from flexion.

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