保留前纵韧带植骨加内固定治疗脊柱爆裂骨折稳定性分析  

Three Internal Fixations in Treating Spinal Burst Fracture with Bone Graft and Intact Longitudinal Ligament

作　　者：董健[1] 陈中伟[1] 陈统一[1] 洪水棕[2] 陈长贤 

机构地区：[1]上海医科大学附属中山医院骨科,200032 [2]上海交通大学力学系生物力学研究室 [3]福建省正骨医院骨科

出　　处：《中华创伤杂志》1999年第5期328-330,共3页Chinese Journal of Trauma

摘　　要：目的　评价短节段前路Kaneda器械、后路经椎弓根螺钉Steffee钢板、后路节段性钢丝固定哈氏撑开棒 3种手术在保留前纵韧带椎体间植骨状态下 ,治疗脊柱爆裂骨折提供的生物力学稳定能力。方法　利用传感器及电测技术 ,采用 12具新鲜人体胸腰段脊柱标本 ,计算平均顺应系数。结果　除节段性钢丝固定的哈氏撑开棒手术在旋转状态失稳外 ,3种手术在轴压、前屈、后伸、侧弯、旋转运动方式均能提供满意的稳定性。结论　Kaneda器械是治疗胸腰段爆裂骨折较为理想的脊柱内固定器械。Objective The three-dimensional stability of the spine injuries (i.e. burst fracture) treated respectively by three kinds of internal fixations with interbody strut bone graft and intact longitudinal ligament was studied. Methods Twelve intact fresh cadaveric thoracolumbar specimens were measured by 3-degree freedom electrogniometer force and displacement transducers .The mean flexibility was computed. The operative techniques included the Steffee transpedicular screws and plates (Steffee), the Kaneda anterior device with transverse fixators (Kaneda) and Harrington distraction rod fixation supplemented with segmental sublaminar wires (s.Harrington). Results These operative techniques could provide good stability in compressive loading, flexion, extension, lateral bending and rotation (except.s Harrington in rotation).Conclusions The result revealed that Kaneda was a good spine implant in treating spinal burst fracture.

关 键 词：脊柱骨折 爆裂骨折 骨折固定术 内固定稳定性 

分 类 号：R683.205[医药卫生—骨科学]