USS复位内固定结合经椎弓根植骨治疗胸腰椎爆裂性骨折

Treatment of thoracolumbar burst fr acture with USS instrumentation and transpedicular bone grafting

目的探讨采用通用脊柱系统(USS)复位内固定结合经椎弓根植骨治疗胸腰椎爆裂性骨折的临床疗效。方法采用通用脊柱系统(USS)复位内固定结合经椎弓根植骨治疗胸腰椎爆裂性骨折27例,术后及随访期间摄X线片,测定椎体成角、上下终板成角、椎体前缘高度与正常高度的比值,了解术后骨折复位情况以及随访期间内固定有无失败和复位丢失情况。结果通过手术复位,椎体成角、上下终板成角、椎体前缘高度与正常高度的比值均明显改善,术后随访测量以上结果与术后相比无明显变化,无一例发生内固定失败。结论采用USS复位内固定结合经椎弓根植骨治疗胸腰椎爆裂性骨折可有效地防止内固定失败以及脊柱骨折复位丢失和后凸畸形,是治疗胸腰椎爆裂性骨折较理想的方法。

Objective To evaluate the clinical efficacy of USS(Universal Spinal System)instrumentation and transpedicular intracorporeal bone grafting in the treatment of thoracolumbar burst fracture.Methods 27pa-tients with thoracolumbar burst fra cture were treated using USS instrum entation and transpedicular bone grafting.Radiological outcomes measured aft er operation and during the follow-u p period included the vertebral angle,the su-perior-inferior endplate angle and the ratio of anterior body height to t he normal height.The radiographs ob tained during the follow-up period were als o analyzed to find if there was any failure of the instrumentation.Results The operative reduction had an satisfactory effect on the vertebral angle,t he superior-inferior endplate angle and the ratio of anterior body height to the normal height.The correction loss was not s ignificant during the follow-up period.There was no failure of the instrumentatio n found during the follow-up period.Conclusion Transpedicular intracorporeal bone grafting can prevent failure of short-segment fixation in treatmen t of thoracolumbar burst fractures.[