Laitt R, Jackson A, Isherwood I
Department of Neuroradiology, Manchester Royal Infirmary, UK.
Br J Radiol. 1996 Aug;69(824):693-8. doi: 10.1259/0007-1285-69-824-693.
109 patients who had undergone Myodil myelography on at least one occasion were identified. The patterns of lumbar nerve root distribution in this group were examined using magnetic resonance imaging. The relationship between these patterns and the presence of spinal stenosis or previous surgery was investigated. Chronic adhesive arachnoiditic nerve root patterns were seen in 68 patients and were classified into three groups according to Delemarter et al. Central clumping of nerve roots (type 1) and complete opacification of the thecal sac (type 3), extending over at least one vertebral level, were significantly related to spinal stenosis at an adjacent level (p < 0.0001). Peripheral adhesion of nerve roots to the theca (type 2) was significantly related to previous surgery at the level of abnormality (p < 0.00005). Only a single case of arachnoiditic nerve root patterns was seen in the absence of stenosis or previous surgery. We conclude that chronic adhesive arachnoiditis is significantly related to previous Myodil myelography in the presence of spinal stenosis or previous surgery but that Myodil alone rarely produces these changes.
确定了109例至少接受过一次碘苯酯脊髓造影的患者。使用磁共振成像检查了该组患者的腰神经根分布模式。研究了这些模式与椎管狭窄或既往手术之间的关系。68例患者出现慢性粘连性蛛网膜炎神经根模式，并根据德勒马特等人的方法分为三组。神经根中央聚集（1型）和硬膜囊完全不显影（3型），至少延伸至一个椎体节段，与相邻节段的椎管狭窄显著相关（p<0.0001）。神经根与硬膜外周粘连（2型）与异常节段的既往手术显著相关（p<0.00005）。在无狭窄或既往手术的情况下，仅发现1例蛛网膜炎神经根模式。我们得出结论，在存在椎管狭窄或既往手术的情况下，慢性粘连性蛛网膜炎与既往碘苯酯脊髓造影显著相关，但仅碘苯酯很少产生这些变化。
