摘要
目的：探讨突出髓核组织在椎管内空间占位的临床意义。方法：44例腰椎！司盘突出症患者（A组）及73例正常人（B组，其中22例有腰椎间盘突出者为B1组，余为B2组）观察：（1）突出椎间盘CT超薄扫描三维数据；（2）腰椎X线平片及动力学摄片测量数据；（3）分析两组突出髓核组织的体积、表面积、突出髓核椎管内相对占位空间以及腰椎结构和功能等情况的差异和相关性等。结果：正常人群中无症状髓核突出（B1）者高达30，1％，但突出的髓核比患者组（A组）明显要小，其椎管内相对空间占位也较小；患者腰椎结构与功能均不如B1组，但无显著性差异。结论：（1）腰椎管对突出髓核组织的空间占位具有相当的容纳能力，但容纳植限尚无法确定；（2）较大的髓对支突出会减低椎管代偿容纳的可能性，容易引发结构紊乱及神经根刺激。
To probe the clinical significance of space occupation of lumbar protruded nucleus pulposus (PNP) in vertebral canal. Methods: Materials of tridimentional ultrathin scanning computed tomography (CT), plain and flexion-extension dynamic radiograph on lumbar spine in 44 patients of lumbar intervertebral disc protrusion and 73 asymptomatic subjects (as control, including 22 cases with PNP but without symptoms) were observed, analysed and compared in volume, surface area, relative space occupation of PNP inside spinal canal, structure deformation and mobility of lumbar spine, and their difference and relevance. Results: The rate of asymptomatic lumbar disc protrusion in the control group was up to 30. 1 %. The volume, surface area and relative space occupation of PNP inside spinal canal in the patients group were significantly higher than those in the control group. Although the structure was more de formed and mobility of lumbar spine more limited in the patients group before and after treatment than those in the control group, as compared with those subjects with asymptomatic PNP, the difference was insignificant. Conclusion: (1)Relative space occupation of PNP inside spinal canal could be usually digested by compensation system of spinal column, however, there is no final conclusion reached about the limit of compensation system; (2) Relatively bigger PNP may reduce the structure compensation capability of lumbar spine, which will result, sometimes, in a mechanical disorder of lumbar spine and nerve root irritation.
出处
《中国中西医结合杂志》
CSCD
北大核心
2000年第5期347-349,共3页
Chinese Journal of Integrated Traditional and Western Medicine
关键词
腰椎间盘突出症
CT
腰脊柱
三维分析
computed tomography
lumbar intervertebral disc protrusion
lumbar spine
dynamic radiograph
