CAUDA-EQUINA DYSFUNCTION - THE SIGNIFICANCE OF 2-LEVEL PATHOLOGY

被引:77
作者
PORTER, RW
WARD, D
机构
[1] Department of Orthopaedics, Aberdeen University Medical School, Aberdeen
[2] Departmcnt of Radiology, Doncaster Royal Infirmary
关键词
NEUROGENIC CLAUDICATION; SPINAL STENOSIS; ROOT CANAL STENOSIS; VENOUS POOLING;
D O I
10.1097/00007632-199201000-00002
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
The pathophysiology of neurogenic claudication is not well understood. It is generally believed that stenosis of the central vertebral canal is significant, but some believe that it is root canal stenosis or stenosis of the foramen that is important, not pathology in the central canal. There are, however, clinical anomalies incompatible with either view. In this article, 49 patients with neurogenic claudication were examined with myelography and computed tomography, recording the frequency of multilevel central canal stenosis and the presence of coexistent root canal stenosis. Of the 49 patients, 46 had either multilevel central canal stenosis or stenosis of both central and root canals. It was concluded that neurogenic claudication is generally associated with at least two levels of stenosis. A hypothesis of two-level venous compression, with venous pooling of one or several nerve roots, explains some of the pathophysiology of neurogenic claudication. This hypothesis is compatible with clinical and experimental observations, but it has yet to be confirmed.
引用
收藏
页码:9 / 15
页数:7
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