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atlas_fracture

Atlas fracture

Epidemiology

Make up ~7% of cervical spine fractures risk of neurologic injury is low.

Commonly missed due to inadequate imaging of occipitocervical junction.

Classification

Type I Isolated anterior or posterior arch fracture. A plough fracture is an isolated anterior arch fracture caused by a force driving the odontoid through the anterior arch.

Type II see Jefferson fracture

Type III Unilateral lateral mass fracture. Stability determined by integrity of transverse ligament.

Pathophysiology

mechanism

includes hyperextension, lateral compression, and axial compression

Associated conditions

C2 spine fracture

50% have an associated spine injury

40% associated with axis fracture

Treatment

Surgical management may be difficult and challenging due to the anatomical relationship sbetween the vertebrae and neurovascular structures.

Prognosis

stability dependent on degree of injury and healing potential of transverse ligament

atlas_fracture.txt · Last modified: 2015/03/12 21:22 (external edit)