髋臼横断骨折安全区钢板内固定生物力学研究  

Biomechanic Study of Transversal Acetabular Fracture Fixated in Safe Zone

作　　者：毕玉梅[1] 王鲁博[1] 穆卫东[1] 

机构地区：[1]山东大学附属省立医院创伤骨科,济南市250021

出　　处：《中国骨与关节损伤杂志》2010年第8期679-681,共3页Chinese Journal of Bone and Joint Injury

基　　金：山东省自然科学基金(编号:Y2006C131)

摘　　要：目的将髋臼横断骨折及解剖学研究安全区相结合进行研究,对4种内固定方法进行生物力学的比较。方法取成人防腐骨盆标本3个(2男1女),将标本自正中矢状面锯开得半骨盆标本6个,做成髋臼横行骨折模型,分别给予;①前柱钢板+后柱螺钉;②前柱螺钉+后柱钢板;③传统前柱钢板+后柱钢板;④安全区前柱钢板+后柱钢板内固定,分别给予200N,400N,600N,800N加载,记录骨折端位移。结果髋臼骨折块的分离位移随载荷的增加而增大,螺钉加钢板组与双钢板组之间的移位差异具有显著的统计学意义(P<0.01)。结论髋臼横断骨折内固定以双柱钢板较为理想,而且安全区与危险区双柱钢板固定的稳定性没有差别。Objective To evaluate the four internal fixation methods by studying the strength of various internal fixations of simulated different scale fractures on transversal acetabular fracture. Methods Three cadaverie pelvis were divided from sagittal midline into 6 models which were cut into transversal acctabular fractures. Each was fixed by four methods including anterior column reconstructed plate fixation and posterior column screw fixation, anterior column screw fixation and posterior column reconstructed plate fixation, traditional anterior column reconstructed plate fixation and traditional posterior column reconstructed plate fixation, anterior and posterior column reconstructed plate fixation combined .Each model through safe zone was tested the displacement by various loading of 200 N,400 N,600 N and 800 N.Results There was significant difference between two screw fixation and plate fixation groups （P〈0.05）.Conelusion Both anterior and posterior column reconstructed plate ivLxation can achieve best stability in transversal acetabular fracture.

关 键 词：髋臼 横断骨折 内固定 生物力学 

分 类 号：R683.3[医药卫生—骨科学]