Lesions of the alar ligaments. In vivo and in vitro studies with magnetic resonance imaging

Spine
W G WillauschusR Scheithauer

Abstract

This study analyzed anatomic characteristics of the alar ligaments and the possibility of imaging them with magnetic resonance imaging. Also determined was whether artificial ruptures of the alar ligament can be recognized experimentally. To determine the ability of magnetic resonance imaging to visualize normal, torn, resected alar ligaments. There are no studies about computed tomography or magnetic resonance imaging findings of alar ligaments and after anatomic sections. Direct visualization of the complete ligament is not possible for computed tomography. No precise diagnostic method for showing a ruptured alar ligaments has been described. Magnetic resonance imaging seems to be the method of choice for distinguishing between normal and pathologic soft tissue. Fifteen specimens from accident victims underwent anatomic dissection. In addition, ligaments from three groups were examined: 1) eight volunteers, 2) seven patients, and 3) 17 fresh cadaveric specimen before anatomic exploratory dissection. In seven of these specimens, one ligament was cut to simulate an artificial disruption and magnetic resonance imaging was repeated. Lesions of the alar ligaments were found in four of 15 prepared specimens. Using magnetic resonanc...Continue Reading

Citations

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