• Demetrios S Korres, Panayiotis J Papagelopoulos, Andreas F Mavrogenis, Ioannis S Benetos, Petros Kyriazopoulos, and Ioannis Psycharis.
• First Orthopaedic Department, Athens University, Athens, Greece.
• Spine. 2005 Sep 1; 30 (17): E517-20.

Study DesignA retrospective study was performed to identify horizontal fractures of the body of the axis, with special attention to their pattern, prevalence, and clinical outcome.ObjectiveThe prevalence of this type of injury and the long-term clinical behavior are examined.Summary Of Background DataAlthough isolated cases have been reported, horizontal Chance-type fractures of the body of the axis are not common cervical spine injuries.MethodsThe medical records of 674 consecutive patients with fractures of the cervical spine admitted to the authors' institute from 1970 to 2002 were reviewed. Of them, 2 (0.3%) had a horizontal Chance-type fracture of the body of the axis. Neurologic deficits were not diagnosed at admission. Mechanism of injury, treatment, and long-term follow-up were evaluated.ResultsBoth patients were treated nonoperatively. At the latest follow-up, 3 and 12 years, respectively, both patients had a satisfactory clinical outcome.ConclusionHorizontal fractures of the Chance-type of the body of the axis are rare. Conservative treatment proved to be effective.

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