...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Failure mechanisms of polyester fiber anterior cruciate ligament implants: A human retrieval and laboratory study.
【24h】

Failure mechanisms of polyester fiber anterior cruciate ligament implants: A human retrieval and laboratory study.

机译：聚酯纤维前交叉韧带植入物的失效机制：人体检索和实验室研究。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

It has been hypothesized that ACL implant failure is often caused by bone impingement in knee extension following malplacement of the tibial tunnel. This study examined polyethylene terephtalate fiber ACL implants retrieved from a clinical study, and, to confirm the hypothesis, also set up a laboratory study intended to duplicate the failure mechanism. SEM and TEM examination of 25 ruptured implants gave details of fiber failure morphology, with shearing into longitudinal fibrils, followed by rupture, when the fibrils burst apart. Cadaver joints were run in a knee simulator, with deliberately impinging ACL implants. SEM examination of implants abraded in the knee in vitro showed identical fiber damage patterns, thus confirming the impingement hypothesis. Copyright 1999 John Wiley & Sons, Inc.
机译：据推测，ACL植入失败通常是由于胫骨隧道错位导致膝盖伸展时骨骼受到撞击而引起的。这项研究检查了从临床研究中回收的聚对苯二甲酸乙二醇酯纤维ACL植入物，并且为了证实这一假设，还建立了旨在重复失效机理的实验室研究。 SEM和TEM检查了25个破裂的植入物，给出了纤维破裂形态的详细信息，剪成纵向原纤维，然后在原纤维破裂时破裂。尸体关节在膝盖模拟器中运行，故意撞击ACL植入物。体外研磨膝盖的植入物的SEM检查显示出相同的纤维损伤模式，从而证实了撞击假说。版权所有1999 John Wiley＆Sons，Inc.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号