Posterior lumbar apophyseal ring fractures : a report of 20 cases

Posterior apophyseal ring fracture (PARF) of the lumbar spine is an uncommon injury thought usually to occur in adolescence. We analysed CT findings in 20 cases (19 patients), whose age ranged from 16 to 45 years (average 30 years). The PARF could be divided into two distinct groups on the basis of...

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Bibliographic Details
Published in:Neuroradiology 1994-08, Vol.36 (6), p.453-455
Main Authors: YANG, I. K, BAHK, Y. W, CHOI, K. H, PAIL, M. W, SHINN, K. S
Format: Article
Language:English
Subjects:
Adolescent
Adult
Biological and medical sciences
Female
Humans
Injuries of the limb. Injuries of the spine
Intervertebral Disc Displacement - diagnostic imaging
Lumbar Vertebrae - diagnostic imaging
Lumbar Vertebrae - injuries
Male
Medical sciences
Middle Aged
Retrospective Studies
Spinal Fractures - diagnostic imaging
Spinal Stenosis - diagnostic imaging
Tomography, X-Ray Computed
Traumas. Diseases due to physical agents
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Summary:Posterior apophyseal ring fracture (PARF) of the lumbar spine is an uncommon injury thought usually to occur in adolescence. We analysed CT findings in 20 cases (19 patients), whose age ranged from 16 to 45 years (average 30 years). The PARF could be divided into two distinct groups on the basis of the shape and location of the fracture and the defect of the vertebral rim. In group 1 (2 cases), PARF involved the central aspect of the inferior vertebral rim and bone fragments were large and broad-based. In group 2, PARF were located at the posterolateral margin of the superior vertebral rim and bone fragments were small and focal. The great majority of previously reported cases belonged to our group 1. A pathogenesis for each group is suggested.
ISSN:0028-3940
1432-1920
DOI:10.1007/BF00593682