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Changes in the surface of the superior articular joint from the lower thoracic to the upper lumbar vertebrae

Published online by Cambridge University Press:  01 April 1997

HARAMUCHI SHINOHARA
HARAMUCHI SHINOHARA
Affiliation:
Division of Human Sciences, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Japan
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Abstract

Thirty-two human vertebral columns were selected from the Kanazawa Collection at the University of Kanazawa, Japan. The superior articular joint surface was categorised into the thoracic type and the lumbar type, and the pattern of the change from one type to the other in the lower thoracic and upper lumbar region was examined. In 21 of 32 cases (66%), the change from the thoracic to the lumbar type occurred over 2 vertebral segments, either between the 12th thoracic and 1st lumbar vertebrae (44%) or between the 11th and 12th thoracic vertebrae (22%). In the remaining 11 cases (34%), the change occurred over 3 vertebral segments, with a transitional type of articular surface. The change from the thoracic to lumbar type of articular surface has been believed to occur over 2 vertebral segments, but occurs over 3 segments in as many as 34% of the articular surfaces.

Keywords

Human vertebral column
Type
Research Article
Information
The Journal of Anatomy , Volume 190 , Issue 3 , April 1997 , pp. 461 - 465
Copyright
© Anatomical Society of Great Britain and Ireland 1997

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