摘要
目的探讨中青年胸腰椎骨折经皮椎弓根钉棒系统短节段内固定术后螺钉断裂的原因。方法 54例行胸腰段椎体骨折经皮椎弓根钉棒系统短节段内固定术的中青年患者中,4例术后发生螺钉断裂,将其临床资料进行回顾性分析。结果本组病例出现螺钉断裂为7.40%,原因为椎弓根钉置入角度不适,连接棒弯度过大。对比剩余50例螺钉未出现断裂病例(P<0.05)。结论经皮椎弓根钉棒系统自身的力学稳定性和重力负荷是导致螺钉断裂的重要原因。
Objective TTo explore the causes of percutaneous pedicle screw rod system with short segment fixation after screw fracture in young thoracolumbar fractures.Methods 54 cases of thoracolumbar vertebral fracture percutaneous pedicle nail stick system short segment internal fixation in young patients,4 cases of postoperative screw fracture,the clinical data were retrospectively analyzed.Results in this group of patients appear screw breakage was 7.40%.The main cause of the fracture of the screw for pedicle screw insertion angle deviation,connecting rod camber is too large.Conclusion The mechanical stability and gravity load of the percutaneous pedicle screw rod system are important reasons for the screw breakage.
出处
《中国继续医学教育》
2016年第10期107-108,共2页
China Continuing Medical Education
关键词
胸腰椎
骨折
经皮椎弓根钉棒系统
内固定
螺钉断裂
Thoracolumbar vertebrae
Fracture
Percutaneous pedicle screw rod system
Internal fixation
Screw breakage
