Posterior dislocation of the atlas on the axis without fracture: A case report

Y. Fujimura, M. Nakamura, K. Kobayashi

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We report a rare case of a patient with atlantoaxial posterior dislocation without fracture who survived, and also discuss the mechanism and clinical presentation of this dislocation. Reduction was safely accomplished by adjusting the weights and direction of skull traction without anaesthesia. Atlantoaxial fusion was considered unnecessary because atlantoaxial instability was not permanent, so we employed external fixation only. This dislocation was caused by simultaneous distraction force as well as hyperextension force.

Original languageEnglish
Pages (from-to)81-84
Number of pages4
JournalJournal of Orthopaedic Surgery
Issue number1
Publication statusPublished - 1997 Dec 1



  • Atlantoaxial posterior dislocation
  • Treatment

ASJC Scopus subject areas

  • Surgery

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