伤椎后路椎弓根螺钉置入并椎体内植骨重建胸腰椎椎体的高度

背景:后路短节段经椎弓根内固定器械可使骨折达到近似解剖复位效果,明显提高疗效,但远期随访矫形度数丢失、内固定失败等并发症较普遍.目的:探讨经伤椎椎弓根螺钉置入固定结合经椎弓根植骨治疗胸腰椎骨折的可行性.方法:对73例胸腰椎骨折应用椎弓根钉棒系统后路伤椎一侧椎弓根螺钉置入内固定,对侧经椎弓根通道采用自体骨和同种异体骨行椎体内植骨.结果与结论:73例随访6个月内均获骨性愈合,脊柱植骨融合率100%,无螺钉松动、折断.1例Frankel分级C级无变化,1例D级无变化,其余患者神经功能及腰背痛明显改善;置入后6个月损伤节段后凸平均Cobb角、伤椎椎体前缘高度、椎管前后径残留程度均较治疗前明显恢复.表明经伤椎椎弓根钉置入内固定结合经椎弓根植骨治疗骨折可获得满意复位,重建椎体高度,增强脊柱的抗压稳定性,减少内固定因应力过大造成的断钉、矫正丢失等并发症.

Reconstructed thoracolumbar height following posterior transpedicular pedicle screw fixation and bone graft

BACKGROUND:Posterior short segment pedicle screw fixation devices can achieve similar anatomic fracture reduction effect and significantly improve the outcome,but the loss of orthopedic degree during long-term follow-ups,fixation failure and other complications are commonly seen.OBJECTIVE:To study the feasibility and curative effect of posterior transpedicular pedicle screw fixation and bone graft for thoracolumbar fractures.METHODS:Seventy-three thoracolumbar vertebra fracture patients treated by unilatera...