AF内固定系统治疗胸腰椎爆裂骨折

目的探讨AF内固定系统在治疗胸腰椎爆裂骨折中的作用和价值.方法对43例胸腰椎爆裂骨折的患者行后路常规椎弓根内固定,骨折复位后椎管减压,观察术前、术后椎体高度及Cobb's角改变.结果术前平均椎体前缘高度为47.8%,术后平均椎体高度为94.9%,术前cobb's角平均27.2°,术后平均4.3°.结论作者认为AF系统固定可靠,又具有良好的撑开作用,对有骨折突入椎管内的爆裂型骨折,骨折块还纳复位以及椎体前、后缘高度恢复可获得满意的效果,但抗扭转能力差.

Treatment of Thoracolumbar Spine Fracture with AF System

Objective: To study the efficacy of AF system in the treatment of burst fractures of thoracolumbar spine. Methods: 43 cases of burst fractures of thoracolumbar spine were reduced and fixed by AF system. The height of vertebral body and the Cobb's angle of preoperation and post operation were observed. Results: The front height of vertebral body was average 47.8% before operation and the height was 94.9% post operation. The Cobb's angle returned from preoperative 27.2 degree to postoperative 4.3 degree. Conclusion: The authors concluded that AF system might be a good internal fixation system in spine fracture, especially the fracture blocks entered into the vertebral canal were reduced and height of vertebral body was raised well. But AF's ability in antitorsion was poor.