后路通用型脊柱内固定系统短节段内固定治疗胸腰椎骨折疗效观察

Effects of posterior general spine system short-segment fixation on the thoracolumbar spine fracture

目的探讨胸腰椎骨折后路通用型脊柱内固定系统（GSS）短节段内固定的疗效。方法回顾性分析采用GSS短节段固定技术治疗胸腰椎骨折47例，测量术前、术后的Cobb角度、椎体前后缘高度比及神经功能恢复情况。结果所有病例均获得随访，47洌胸腰椎爆裂骨折X线片可见椎体后凸畸形矫正满意，椎体高度恢复良好。2例术后出现小于5％的矫正角度丢失，Frankel功能分级B—D级均有明显改善（至少改善1级），A级1例改善到B级，无其他严重并发症。结论后路GSS短节段固定技术治疗胸腰椎骨折安全、有效，能够恢复伤椎高度和生理曲度，有助于神经功能恢复。

Objective To investigate the clinical therapeutic effect of general spine system（GSS） short-segment posterior fixation for the thoracolumbar spine fracture. Methods Totally 47 patients with thorocalumbar fracture were retrospectively analyzed from May 2006 to July 2009 ,which were operated by general spine system short-segment posterior fixation, preoperative and postoperative Cobb angle, front and rear margin height ratio of vertebral body and the recovery of neural function were measured respectively. Results All patients were followed up, in 47 patients with thoracolumbar burst fracture, kyphosis deformity were corrected satisfactorily in X-ray visibly, vertebral body height got good recovery. 2 cases occurred loss of corrective angle less than 5% after operation, in Frankel function classification, B -D classes showed significant improvement（ at least one grade）, A grade improved to B in 1 case, no serious complications occurred. Conclusion GSS short-segment posterior fixation was a safe and effective treatment method for thoracolumbar fracture. It can restore height and physiological curve of injuried vertebral body, contribute to recovery on neural function.