Mechanism of Injury: Hyperflexion

Hyperflexion causes compression of the anterior aspects of the vertebral bodies and posterior ligament complex distraction. This leads to:

  • Chance fractures

    A chance fracture is a horizontal fracture through the body, pedicle and posterior elements of the vertebrae.

  • Tear drop fractures

    A tear drop fracture is a fracture of the anterior superior corner of inferior vertebrae.

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  • Rupture of posterior ligament
  • Odontoid peg

    The odontoid peg may also be fractured by sudden severe flexion.

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