EFFECT OF MOVEMENT ON BONDING OF POROUS METAL TO BONE
EFFECT OF MOVEMENT ON BONDING OF POROUS METAL TO BONE
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DOI：
10.1002/jbm.820070404
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发表时间：
1973-01-01
期刊：
影响因子：
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通讯作者：
MACNAB, I
中科院分区：
文献类型：
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作者：
CAMERON, HU;PILLIAR, RM;MACNAB, I
人们试图定义与运动有关的条件，在这种条件下，多孔金属将与骨结合。已经证明，在静态条件下和微动条件下，骨骼会生长到多孔性维生素A的孔隙中，就像肌腱受到拉力时一样。描述了一种实验，在该实验中，将多孔维生素A钉插入一个不稳定的截骨部位。没有发生粘连，这表明在存在这种数量级的移动时不会发生骨内长。这一观察结果在多孔涂层内假体的设计中的意义是，需要某种形式的初始机械固定，并且这种固定必须保持坚硬四个月才能允许骨内长。
An attempt has been made to define the conditions with respect to movement under which porous metal will bond to bone. It has already been shown that bone will grow into the pore of porous Vitallium under static conditions and under conditions of micromovement, as when stressed by the pull of a tendon. An experiment is described in which porous Vitallium staples were inserted across an unstable osteotomy site. No bonding occurred indicating that bone ingrowth will not occur in the presence of movement of this order of magnitude.The implication of this observation in the design of porous coated endoprostheses is that some form of initial mechanical fixation is required, and this fixation must remain rigid for four months to allow bone ingrowth.