论文部分内容阅读
报告了胸腰部跨伤椎椎弓根间距的 CT预测方法以及说明以此方法测出的椎弓根间距对椎弓根系内固定术中恢复伤椎高度所起的作用。 CT扫描 78例无胸腰椎形态改变者的侧位 T1 0 ～ S1 ,由 CT软件测量发现假定伤椎上位椎体的下缘线段中点 ,到该椎体上一个相间椎体的下缘线段中点的距离与伤椎下位椎体的上缘线段中点到该椎体下位相间椎体的上缘线段中点的距离的平均数约等于跨伤椎椎弓根之间的正常距离。此规律实际应用于胸腰部脊椎骨折病人椎弓根系内固定术中钉间距的确定。结果 5 1例胸腰椎骨折的人经过应用该方法 ,有 49例伤椎高度完全恢复。认为凡使用椎弓根内固定治疗胸腰部脊椎骨折者 ,为了能更好的恢复伤椎的正确高度 ,有必要通过 CT预测所要达到的钉间距
The CT prediction method of intervertebral pedicle distance in the thoracolumbar region and the effect of pedicle distance measured by this method on the recovery of vertebral height in pedicle screw fixation were reported. CT scan of 78 cases of non-thoracic lumbar spine lateral T1 0 ~ S1, measured by CT software found that the lower vertebral vertebral vertebral line segment midpoint to the vertebral body of an interphalangeal lower edge line segments The distance between the point and the upper edge of the lower vertebral vertebral line segment midpoint to the lower vertebral body vertebrae of the upper edge of the midpoint of the distance between the points approximately equal to the normal distance between the transpedicular pedicle. This rule is actually applied to the determination of the nail spacing in the pedicle screw fixation of thoracolumbar spine fractures. Results 51 cases of thoracolumbar fractures through the application of this method, 49 cases of vertebral height completely restored. That the use of pedicle screw fixation of thoracolumbar spine fractures, in order to better restore the correct height of the injured vertebra, it is necessary to predict by CT to achieve the nail spacing