Clin Orthop Surg.  2014 Mar;6(1):96-100. 10.4055/cios.2014.6.1.96.

Congenital Anomaly of the Atlas Misdiagnosed as Posterior Arch Fracture of the Atlas and Atlantoaxial Subluxation

Affiliations
  • 1Department of Orthopedic Surgery, National Health Insurance Cooperation Ilsan Hospital, Goyang, Korea. mini3001@naver.com

Abstract

Partial or complete absence of the posterior arch of the atlas is a well-documented anomaly but a relatively rare condition. This condition is usually asymptomatic so most are diagnosed incidentally. There have been a few documented cases of congenital defects of the posterior arch of the atlas combined with atlantoaxial subluxation. We report a very rare case of congenital anomaly of the atlas combined with atlantoaxial subluxation, that can be misdiagnosed as posterior arch fracture.

Keyword

Congenital anomaly of the atlas; Posterior arch fracture; Atlantoaxial subluxation

MeSH Terms

Adult
Cervical Atlas/*abnormalities
Diagnosis, Differential
Female
Humans
Spinal Diseases/*diagnosis
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