Porous ingrowth fixation of the femoral component in a canine surface replacement of the hip.
Porous ingrowth fixation of the femoral component in a canine surface replacement of the hip.
复制标题
股骨假体的多孔向内生长固定在髋关节的犬齿表面置换中。
DOI：
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发表时间：
1982
影响因子：
4.2
通讯作者：
H. Amstutz
中科院分区：
文献类型：
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作者：
A. Hedley;I. Clarke;S. Kozinn;I. Coster;T. Gruen;H. Amstutz
通过将骨生长到多孔植入物中进行假体固定，多孔植入物涂覆有钴Chrome珠烧结层，这是丙烯酸骨水泥的一种有吸引力的替代方法。对狗的实验表明，骨长入发生在髋关节表面置换的股骨部件中。为了促进骨长入而稳定假体的方法不得干扰骨-植入物界面处应力传递的均匀性。早在植入后第二周就发生了向内生长。骨和金属之间的界面没有任何纤维膜形成，表明烧结Chrome钴是一种高度相容的生物系统，通过骨长入进行固定是稳定的，不会促进界面处的破骨作用和纤维膜进展。
Prosthetic fixation by growth of bone into porous implants coated with a sintered layer of cobalt chrome beads offers an attractive alternative to acrylic cementation. Experiments on dogs demonstrate that bone ingrowth occurred into the femoral component of a hip surface replacement. Methods of stabilizing prostheses in order to promote bone ingrowth must not interfere with the uniformity of stress transfer at the bone - implant interface. Ingrowth occurred as early as the second week postimplantation. The absence of any fibrous membrane formation in the interface between bone and metal suggests that sintered chrome cobalt is a highly compatible biological system, and that fixation by bone ingrowth is stable and does not promote osteoclasis and progression to a fibrous membrane at the interface.