Lumbar Intervertebral Foramens. An in Vitro Study of Their Shape in Relation to Intervertebral Disc Pathology

Overview

Journal Spine (Phila Pa 1976)

Specialty Orthopedics

Date 1991 May 1

PMID 2052994

Citations 19

Authors

M M Stephens

J H Evans

J P OBrien

Affiliations

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Abstract

The lumbar intervertebral foramens of 20 isolated cadaveric spines were investigated by the use of a molding technique to assess their dimensions accurately and how intervertebral disc pathology altered their configuration. Oval foramens predominated over auricularly shaped foramens when the disc was normal, but when the disc was abnormal, the converse was true. Foraminal size varied from 40 to 160 mm2 but showed great variation even at individual levels; these were not accurately reflected by simple radiologic measurements.

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