实验性肢体延长术后骨愈合的生物力学研究  

Biomechanical study on bone healing in experimentallimb lengtbening

作　　者：胡建[1] 曾宪政[1] 

机构地区：[1]第三军医大学附属西南医院骨科

出　　处：《中华外科杂志》1994年第4期249-251,T034,共4页Chinese Journal of Surgery

摘　　要：本实验采用３２只健康青山羊，进行胫骨上干骺端截骨延长术，并于停止延长后不同时期分别测试延长骨的抗扭强度、刚度及能量吸收。实验结果表明，骨愈合过程中，骨力学性能的恢复与其组织学改变是一致的。延长骨的愈合过程可大致分为三个生物力学时期：（１）低强度、低刚度阶段；（２）低强度、高刚度阶段；（３）高强度、高刚度阶段。AbstractIn this experiment,32 goats were performed os-teotomy limb lengthening by tibial upper metaphyseal.The strength,stiffness and energy absorption of thelengthened bone had been measured in different periodafter the lengthening ceased.The results demonstratedthat during the lengthened bone healing process,therecovery of bone mechanical properties is compatiblewith its histological changes;and the healing processof lengthened bone can be roughly divided into threebiomechanical stages:(1)Low strength and low stiff-ness stage;(2)Low strength and high stiffness stage;(3)High strength and high stiffness stage.

关 键 词：生物力学 肢体延长 骨愈合 

分 类 号：R318.01[医药卫生—生物医学工程]