The Biomechanical Study of Plate Fixationin the Treatment of Distal Radius Fracture through the Volar or Dorsal Approach
1.Department of Baoshan Branch，Huashan North Hospital，Fudan University，Shanghai Renhe Hospital
2.Department of Orthopaedics，Huashan Hospital，Fudan University
Objective To compare the biomechanical properties of distal radius fracture by volar or dorsal plate fixation.And provide theoretical basis for the strategy of treatment for the distal radius fracture.Methods The unstable type of fracture were established in 10 distal radius specimens.The specimens were randomly assigned to volar or dorsal plate fixation groups (n＝5 in each group).Biomechanical testings were conducted in these specimens after plate fixation.Results a) In the dorsal displacement type of distal radius fracture，there was no significant difference between volar and dorsal plate fixation groups in stress intensity，axial rigidity or shearing rigidity (P＞0.05).b) No significant difference was found in the torque or torsional rigidity between the volar and dorsal plate fixation groups (P＞0.05).c) In the axial stress testings，no significant difference was found in the ultimate strength of absorbed energy by bone between the two groups (P＞0.05).d) The present results were only 6% different from the theoretical analysis of combined rod stress，which proved the validity of the present experimental stress results.Conclusion In the dorsal displacement type of distal radius fracture，the biomechanical properties were similar between the volar and dorsal plate fixation groups.Although dorsal plate fixation resulted in better outcomes，there were no significant differences between the two groups.In clinical practice，however，it is easier，more convenient，more practical and more effective to use the volar plate fixation.
张亮 1，邹宁 1，周健伟 2，梁钟鸣 1，胡玉平 1，王兴元 1，刘磊 1*. 桡骨远端骨折掌、背侧钢板固定的生物力学研究[J]. 实用骨科杂志, 2019, 25(2): 131-134.
Zhang Liang 1，Zou Ning 1，Zhou Jianwei 2，et al. The Biomechanical Study of Plate Fixationin the Treatment of Distal Radius Fracture through the Volar or Dorsal Approach. sygkzz, 2019, 25(2): 131-134.
［1］王以进，王介麟.骨科生物力学［M］.北京：人民军医出版社，1989：156-196.
［2］Bryce CD，Davison AC，Okita N，et al，A biomechanical Study of posterior glenoid bone loss and humeral head transtation［J］.J shoulder Elbow Surg，2012，19(7)：994-1002.
［3］费红良，王金法，石盛生，等.桡骨远端骨折行掌侧T型钢板和背侧双钢板治疗后的临床效果研究分析［J］.浙江创伤外科，2015，20(4)：756-758.
［4］胡玉明，谢仁国，邢树国，等.三种不同固定方法治疗桡骨远端关节内骨折的离体生物力学研究［J］.中华手外科杂志，2014，30(2)：135-137.
［5］Frankel VH，Nordin M.Biosic Biomechanics of the Skeletal System［M］.戴尅戎，王以进，等译.上海：学林出版社，1985：24-59.
［6］林军，吴凌峰，叶端炉.掌侧入路解剖斜T型锁定板治疗桡骨远端C型骨折［J］.浙江中西医结合杂志，2016，26(6)：570-571.
［7］Maurel MLI，Fitzgerald LG，Miles AW，et al.Biomechanical study of the efficaey of a new design of wrist guard［J］.Clin Biomech (Bristol Avon)，2013，28(5)：509-513.
［8］王军浩，赵小英，朱梦龙，等.微型双钢板内固定治疗不稳定桡骨远端骨折［J］.中国骨与关节损伤杂志，2016，31(1)：98-99.
［9］王芳.桡骨远端骨折骨密度测量分析及钢板固定与石膏外固定治疗疗效观察对比及分析［D］.南京：南京中医药大学，2015.
［10］Edwards WB，Troy KL.Simulating distal radius fracture strength using biomechanical tests：a modeling study examining the influence of bondary conditions［J］.J Biomech Eng，2011，133(11)：114501.
［11］刘跃辉，龙宁，吴辉，等.桡骨远端不稳定性骨折两种固定方式的生物力学对比试验研究［J］.解放军医药杂志，2014(11)：48-51.
［12］刘雄，吴卫东，荀福兴，等.不同长度锁钉固定桡骨远端不稳定骨折的生物力学比较［J］.医用生物力学，2014，29(2)：161-166.
［13］王明鑫，尹望平，曾庆敏，等.尺骨短缩截骨术治疗桡骨远端骨折畸形愈合的生物力学研究［J］.中华手外科杂志，2017，33 (3)：205-208.
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