胸腰椎骨折治疗中置入AF内固定系统的应用要点

探讨AF内固定系统置入治疗胸腰椎骨折复位中的效果。AF内固定系统既能起到固定作用，又能起到复位作用，对大部分脊柱爆裂性骨折通过脊柱过伸或器械撑开使椎管内和椎体前缘的骨折块复位或部分复位，在一定程度上缓解对神经的压迫。通过脊柱的前后纵韧带和椎间盘的纤维环的牵拉作用使塌陷的椎体复位，恢复脊柱的生理曲度和伤后椎体的高度，维持脊柱的稳定性，早期进行功能锻炼，促进骨折后愈合及减少并发症的发生。AF内固定系统置入在治疗胸腰椎骨折时，重要的问题是进钉、复位、牵张、融合均需在宿主骨骼运动生物力学基础上完成，并且在整个置入过程中应始终关注和存在着置入物与宿主的生物相容性问题。

Application of AF internal fixation system in treating lumbar vertebral fracture

This paper explored effect of AF internal fixation system in reduction of lumbar vertebral fracture. AF internal fixation system acts fixation and reduction roles for most of spinal blowout fracture through spinal hyperextension or devise opening to reduce fracture blocks in vertebral canal or anterior vertebrae. In addition, it alleviates neural compression to some extent. The collapsed vertebral reduction is achieved by traction of anterior and posterior longitudinal ligaments as well as intervertebral annulus fibrosus; the physiologic curvature and vertebral height are restored. Moreover, the spinal stability is maintained. Early functional exercise can promote fracture healing and reduce complications. In treatment of lumbar vertebral fracture by AF internal fixation system, screw entry, reduction, traction, and fusion are completed based on host biomechanics, and biocompatibility of implant and host should be paid more attention.