title: Management of Unusual Atlantoaxial Dislocation.
abstract: METHODS
  A case report and review of the literature.
  
  
  OBJECTIVE
  The aim of this study was to describe the successful treatment of one posterior atlantoaxial dislocation without fracture and to review the relevant literature.
  
  
  BACKGROUND
  Posterior atlantoaxial dislocation without fracture of the odontoid process is extremely rare. Management of these patients is still unknown.
  
  
  METHODS
  A posterior atlantoaxial dislocation without fracture in a 58-year-old man with incomplete quadriplegia was treated surgically with posterior atlantoaxial pedicle screws internal fixation and fusion after closed reduction. The images, treatment, and related literature are reviewed.
  
  
  RESULTS
  The patient had complete recovery of neurologic deficit and bony fusion of the atlantoaxial joint was identified on the follow-up computed tomography taken 3 months after posterior fixation. To our knowledge, no case of posterior atlantoaxial dislocation with neurologic deficit has been previously reported in English medical literature.
  
  
  CONCLUSIONS
  We described a rare case of posterior atlantoaxial dislocation with neurologic deficit. Treatment procedure of posterior atlantoaxial dislocation was presented.
  
  
  METHODS
  5.
authors.affiliation: Department of Orthopedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
authors.forename: Ruipeng
authors.initials: R
authors.lastname: Song
authors.forename: Daoyang
authors.initials: D
authors.lastname: Fan
authors.forename: Han
authors.initials: H
authors.lastname: Wu
authors.forename: Zhen
authors.initials: Z
authors.lastname: Zhang
authors.forename: Liang
authors.initials: L
authors.lastname: Zhao
authors.forename: Yilin
authors.initials: Y
authors.lastname: Liu
authors.forename: Wensheng
authors.initials: W
authors.lastname: Liao
authors.forename: Hongyu
authors.initials: H
authors.lastname: Tan
authors.forename: Limin
authors.initials: L
authors.lastname: Wang
authors.forename: Weidong
authors.initials: W
authors.lastname: Wang
mesh_terms: D001268:Atlanto-Axial Joint / Q000293:injuries* / Q000601:surgery; D005593:Fracture Fixation, Internal; D006801:Humans; D004204:Joint Dislocations / Q000150:complications / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009809:Odontoid Process; D065289:Pedicle Screws; D011782:Quadriplegia / Q000209:etiology / Q000601:surgery*; D020127:Recovery of Function; D013123:Spinal Fusion; D013124:Spinal Injuries / Q000150:complications / Q000601:surgery*