Transposition of the vertebral artery after a unilateral c1 lateral mass fracture: a case report and review of the literature.

: In any cervical spine trauma involving dislocation of the facet joints or transverse foramen, a concomitant injury of the vertebral arteries must be excluded. Early diagnosis of an arterial occlusion is important because therapeutic intervention can prevent further complications, such as irreversible vertebrobasilar ischemia. Conservative and surgical treatment strategies are chosen depending on patient symptoms, fracture morphology, and grade of vascular injury. The benefit of anticoagulant medication after blunt injuries of the vertebral arteries in preventing thromboembolic events remains a matter of debate in the current literature. We present a case report of a professional biathlete with a unilateral vertebral artery injury. Adequate interpretation of both initial clinical and radiological findings is essential to detect this injury and to determine appropriate therapeutic intervention to optimize clinical outcome.