摘要
[目的]从生物力学角度探讨尺桡骨中段双骨折不同内固定方法的力学稳定性差异,为临床应用提供理论依据。[方法]采用15具新鲜尺桡骨标本,制成中段横形骨折模型(AO分型A3.2),分成3组,然后采用三种不同的方法进行固定(尺桡骨双钢板固定,尺桡骨双髓内钉固定,尺骨髓内钉加桡骨动力加压钢板固定)。之后,进行生物力学试验,比较轴向刚度、弯曲刚度、扭转刚度和等效刚度。[结果]双钢板组与尺骨髓内钉+桡骨钢板组之间无明显差异,两者的稳定性均高于双髓内钉组。[结论]尺骨髓内钉加桡骨钢板组具有良好的生物力学性能,固定可靠,并且具有创伤小、并发症少的优点,是一种良好的固定方法。
[Objective]To discuss the difference of mechanical stability in using different fixation methods in treating radius and ulna fracture,in order to provide a theoretical basis for clinical applications.[Method]In the experiment,15 pieces of fresh radius and ulna were used to produce middle-part transverse fracture models（A3.2）which were fixed by three different methods（double plate fixation group,double-intramedullary nail fixation group,ulnar intramedullary nailing ＋ radial plate group）.Through biomechanical tests,axial stiffness,bending stiffness,torsional stiffness and the equivalent stiffness were compared.[Result]There were no difference between double-plate group and ulnar intramedullary nailing ＋ radial plate group,the stability in these two groups were higher than that in double-intramedullary nail fixation group.[Conclusion]Ulnar intramedullary nailing ＋ radial plate has a good biomechanical property,it can provide firm fixation and with less trauma.So it is a good fixation.
出处
《中国矫形外科杂志》
CAS
CSCD
北大核心
2010年第6期483-485,共3页
Orthopedic Journal of China
基金
上海市卫生局青年科研项目(编号:2008Y062)
关键词
尺桡骨骨折
治疗方法
生物力学
radius and ulna fracture
treatment
biomechanical
