GRADUAL DISK PROLAPSE
GRADUAL DISK PROLAPSE
复制标题
DOI：
10.1097/00007632-198507000-00006
复制
发表时间：
1985-01-01
期刊：
影响因子：
3
通讯作者：
HUTTON, WC
中科院分区：
文献类型：
--
作者：
ADAMS, MA;HUTTON, WC
52具尸体腰椎运动节段在压缩和弯曲的疲劳载荷下，以确定椎间盘是否会以渐进的方式脱出。在测试之前，用少量蓝色染料和不透射线溶液对每个椎间盘的髓核进行染色。这使得任何逐渐脱垂的进展都可以通过直接观察和椎间盘造影来监测。6个椎间盘在测试期间逐渐脱出。损伤开始于纤维环的薄片扭曲形成放射状裂隙，然后核髓从椎间盘中挤出并泄漏到椎管中。最常受累的椎间盘来自年轻尸体的下腰椎。对10个先前存在破裂的旧椎间盘进行的测试表明，这些椎间盘是稳定的，不会泄漏核浆。
Fifty-two cadaveric lumbar motion segments were subjected to fatigue loading in compression and bending to determine if the intervertebral discs could prolapse in a gradual manner. Prior to testing, the nucleus pulposus of each disc was stained with a small quantity of blue dye and radiopaque solution. This enabled the progress of any gradual prolapse to be monitored by direct observation and by discogram. Six discs developed a gradual prolapse during the testing period. The injury starts with the lamellae of the annulus being distorted to form radial fissures and then nuclear pulp is extruded from the disc and leaks into the spinal canal. Discs most commonly affected were from the lower lumbar spine of young cadavers. Tests on ten older discs with pre-existing ruptures showed that such discs are stable and do not leak nuclear pulp.