1. Gelinas C, Levine AM: Upper Cervical Spine Fractures and Instability. In Chapman MW: Chapman’s Orthopaedic Surgery. Philadelphia: Lippincott Williams & Wilkins. 2006, 3685-3687. 2. Congress of Neurological Surgeons. Isolated fractures of the axis in adults. Neurosurgery. 2002;50(3 Suppl):S125-39. 3. Anderson PA: Injuries to the Upper Cervical Spine. In Frymoyer JW, Wiesel MW (eds): Adult and Pediatric Spine. Philadelphia: Lippincott Williams and Wilkins. 2004, 652-654. 4. Wheeless, CR III. Pseudosubluxation of the Cervical Spine. 17 Dec 2007. 3 Dec 2008. www.wheelessonline.com/ortho/pseudosubluxation_of_the_c_spine
The authors would like to acknowledge Michael Pearlman, MD, for his contributions to this case. | 
