Wear of prosthetic joint materials in various lubricants
Wear of prosthetic joint materials in various lubricants
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DOI：
10.1016/s0043-1648(97)00074-4
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发表时间：
1997-10-01
期刊：
影响因子：
5
通讯作者：
Saikko, V
中科院分区：
文献类型：
--
作者：
Ahlroos, T;Saikko, V
作为正在进行的旨在生产用于假体关节材料磨损测试的可靠人工关节液的研究的一部分，研究了大豆卵磷脂和大豆蛋白的润滑性能。为了进行比较，磨损试验是用牛血清和翻修手术时从人工髋关节中吸出的关节液进行的。试验是用高分子量聚乙烯在抛光不锈钢和钴铬合金上滑动进行的。在往复式销盘装置中，蒸馏水和磷酸盐缓冲液中的卵磷脂不能完全防止聚乙烯转移到抛光不锈钢配合面上。盐溶液中的大豆蛋白具有优异的润滑性能：它防止聚乙烯转移和聚乙烯销的磨损。牛血清抑制聚乙烯转移和不锈钢配合面的所有其他损坏。人工关节液的润滑性能较差，与蒸馏水相似。在三轴髋关节模拟器测试中，林格氏溶液中的卵磷脂阻止聚乙烯转移到钴铬股骨头。(C)1997年Elsevier Science S.A.
As a part of ongoing research intended to produce a reliable artificial joint fluid for wear tests of prosthetic joint materials, the lubricating properties of soybean lecithin and soy protein were studied. For comparison, wear tests were done with bovine serum, and with joint fluid aspirated from a prosthetic hip joint at revision operation. The tests were done with ultrahigh molecular weight polyethylene sliding against polished stainless steel and Co-Cr alloy. In the reciprocating pin-on-disk device, lecithin in distilled water and in phosphate buffer did not completely prevent the polyethylene transfer to the polished stainless steel counterface. Soy protein in salt solution had excellent lubricating properties: it prevented polyethylene transfer and the wear of the polyethylene pin. Bovine serum suppressed polyethylene transfer and all other damage to the stainless steel counterface. The prosthetic joint fluid had poor lubricating properties, similar to those of distilled water. In the three-axis hip simulator test, lecithin in Ringer's solution prevented the polyethylene transfer to the Co-Cr femoral head. (C) 1997 Elsevier Science S.A.