脊柱内固定系统Ⅱ型治疗胸腰椎爆裂骨折研究

The study of the thoracolumbar burst fracture by GSS- Ⅱ internal fixation

目的 探讨在胸腰椎爆裂骨折患者应用GSS-Ⅱ内固定系统治疗的方法和效果。方法 采用GSS-Ⅱ内固定系统内固定治疗胸腰椎爆裂骨折病例16例，所有患者外伤距手术时间均不超过2周。在施行后路常规撑开和恢复腰椎前凸的同时，应用椎弓根螺钉向垂直于撑开应力方向的腹侧加压，以达到局部的应力平衡。术后随访6个月至2年，平均11个月。结果 16例术后Cobb角及前柱高度恢复较佳。手术前后骨折椎前移复位程度的变化。结论 GSS-Ⅱ内固定系统治疗胸腰椎爆裂骨折可以增强胸腰椎骨折后路短节段内固定系统的牢固性，并有利于矫正后凸畸形和维持矫正效果。

Objective To discuss the effect and method of treatment of the thoracolumbar burst fracture with GSS- Ⅱ internal fixation. Methods 16 patients suffered from the thoracolumbar burst fracture were treated by GSS- Ⅱ internal fixation. All the patients underwent the operation within up to 3 weeks after fracture. The pedicle screws in the injured vertebrae were used to achieve the ventral press vertical to the distraction for the stress neutralization,and also with the routine distraction and lordosis restoration,simultaneously. The mean follow-up period was 11 months with a range from 6 months to 2 years. Results After operation,the optimal Cobb angle and anterior column restoration were achieved. Conclusion GSS- Ⅱ internal fixation of thoracolumbar vertebral bodies fractures is an effective method to maintain the stability of the posterior short-segment instrumentation and prevent from the kyphotic deformation, and the loss of correction.