LUMBAR FORAMINAL STENOSIS - CRITICAL HEIGHTS OF THE INTERVERTEBRAL DISKS AND FORAMINA - A CRYOMICROTOME STUDY IN CADAVERA
LUMBAR FORAMINAL STENOSIS - CRITICAL HEIGHTS OF THE INTERVERTEBRAL DISKS AND FORAMINA - A CRYOMICROTOME STUDY IN CADAVERA
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DOI：
10.2106/00004623-199501000-00005
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发表时间：
1995-01-01
影响因子：
5.3
通讯作者：
NOWICKI, BH
中科院分区：
文献类型：
--
作者：
HASEGAWA, T;AN, HS;NOWICKI, BH
本文对18具新鲜身体的100个腰椎间孔进行了研究，以了解神经根受压与椎间盘高度的关系以及在冰冻切片上所确定的椎间孔的形态特征。神经根受压程度与第二腰椎和第一腰椎之间的4个椎间隙的后盘高度、椎孔高度和椎孔横截面积呈显著正相关。在100个椎孔中有21个椎间存在神经根压迫，在10个椎间高度小于或等于4 mm的椎孔中有8个椎孔受压，在5个椎孔高度小于或等于15 mm的5个椎孔中有4个椎孔受压。这些临界尺寸可能是椎间孔狭窄的指标然而，脊神经根受压并不总是导致坐骨神经痛，在考虑狭窄的诊断时，必须始终考虑临床表现。
One hundred lumbar intervertebral foramina from eighteen spines of fresh cadavera were studied to assess the relationship between compression of the nerve root and the height of the intervertebral disc and the morphological characteristics of the intervertebral foramen as determined on cryomicrotome sections. The critical posterior disc height and the critical foraminal height that were associated with entrapment and compression of the nerve root were determined.Significant positive correlations were demonstrated between compression of the nerve root and the posterior disc height, the foraminal height, and the foraminal cross-sectional area for the four intervertebral levels between the second lumbar and first sacral vertebrae, Nerve-root compression was evident in twenty-one of the 100 foramina, in eight of the ten foramina in which the posterior disc height was four millimeters or less, and in four of the five foramina in which the foraminal height was fifteen millimeters or less.These critical dimensions may be indicators of foraminal stenosis in the lumbar spine, However, compression of a spinal nerve root does not always cause sciatica, and the clinical findings must always be taken into account when a diagnosis of stenosis is considered.