椎弓根钉系统复位内固定可注射人工骨椎体成形治疗胸腰椎骨折

[目的]探讨椎弓根钉系统复位内固定及可注射人工骨椎体成形治疗胸腰椎骨折的临床价值。[方法]采用椎弓根钉系统复位内固定及可注射人工骨椎体成形治疗15例胸腰椎骨折患者，其中压缩性骨折7例，爆裂性骨折8例。[结果]本组平均随访9．6个月。随访期内无内固定松动及断裂现象，无慢性腰痛，伤椎高度无丢失，注入椎体内的人工骨均在3个月内吸收。合并有不全瘫痪12例，按Frankel分级：术前B级4例，C级6例，D级2例。术后C级3例，D级5例，E级4例，术前术后比较差异有统计学意义（x^2=21．000，P=0．000〈0．01）。[结论]采用椎弓根螺钉系统复位内固定及可注射人工骨椎体成形治疗胸腰椎骨折是一种安全有效、术后能提供早期负重、维持良好椎体高度的较理想方法。

Treatment of thoracolumbar vertebrae fractures with fixation by vertebral pedicle screw system and vertebroplasty using injectable graft

[Objective]To discus clinic value of fixation by vertebral pedicle screw system and vertebroplasty using injectable graft for thoracolumbar vertebrae fractures.[Method]Fifteen cases of thoracolumbar vertebrae fractures(7 cases with compress fractures,8 cases with burst fractures) were treated with fixation by vertebral pedicle screw system and vertebroplasty using injectable graft.[Result]The group was followed up for average 9.6 months,no case showed internal fixation device loosening or breaking,nor were chronic lumbar pain seen in this group.No case had lost the anterior height of body of spine.All injected grafts were Abs orbed within 3 months postoperatively.According to Frankels grading,there were 4 cases in Grades B,6 cases in Grade C and 2 cases of Grade D preoperatively,but 3 cases of Grade C,5 cases of Grade D and 4 cases of Grade E postoperatively in 12 cases with incomplete paraplegia,with a statistically significant difference(x~2 =21.000,P=0.000<0.01).[Conclusion]Fixation with vertebral pedicle screw system and vertebroplasty using injectable graft constitute good treatment modalities for thoracolumbar vertebrae fractures,with safety and satisfied results,reliable fixation of the vertebral body to allow early force loading postoperatively and to remain the anterior height of body of spine.