title: A fracture of unilateral pars interarticularis of the axis: a case report.
abstract: OBJECTIVE
  To present a case of a fracture of the unilateral pars interarticularis of the C2.
  
  
  METHODS
  There is confusion in the use of anatomic terminology of the pars interarticularis and pedicle of the C2 in literature. A fracture of the unilateral pars interarticularis of the C2 was diagnosed and treated nonsurgically by a Philadelphia collar.
  
  
  RESULTS
  The patient was free of pain and obtained a full range of motion.
  
  
  CONCLUSIONS
  The presumed mechanism of injury in the fracture described here was hyperextension and axial loading.
authors.affiliation: Ondokuzmayis University, Neurosurgery, Samsun, Turkey. kaydin@omu.edu.tr
authors.forename: Keramettin
authors.initials: K
authors.lastname: Aydin
authors.forename: Cengiz
authors.initials: C
authors.lastname: Cokluk
mesh_terms: D000063:Accidents, Traffic; D000328:Adult; D002574:Cervical Vertebrae / Q000293:injuries*; D016267:External Fixators; D006801:Humans; D008297:Male; D019547:Neck Pain / Q000209:etiology; D016103:Spinal Fractures / Q000000981:diagnostic imaging / Q000601:surgery*; D014057:Tomography, X-Ray Computed