Improved friction and wear performance in polymeric components of orthopaedic bearings.

改善骨科轴承聚合物部件的摩擦和磨损性能。

• 批准号: 5223-2013
• 负责人: Bryant, Tim
• 金额: $ 1.89万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=520780
• 关键词: Improved; friction; wear; performance; polymeric

Nearly 25,000 Canadians and 600,000 worldwide are implanted with an artificial knee each year. These devices are most often designed using specialized components made of metal (cobalt chrome) and plastic (ultrahigh molecular weight polyethylene). They are the treatment of choice for severe degenerative joint disease, and they are now being implanted in active patients, some as young as 45. As a result, there is an increased need to improve their durability, particularly with respect to wear in the plastic component. While there have been improvements in the design of polyethylene for use in hips, this has not been the case for highly stressed joints such as the knee.

每年有近 25,000 名加拿大人和全球 600,000 人植入人工膝关节。这些设备通常是使用由金属（钴铬）和塑料（超高分子量聚乙烯）制成的专用组件来设计的。 它们是严重退行性关节疾病的首选治疗方法，目前正被植入活跃的患者体内，其中一些患者年仅 45 岁。因此，人们越来越需要提高其耐用性，特别是在塑料部件的磨损方面。 虽然用于臀部的聚乙烯设计有所改进，但对于膝盖等高应力关节来说情况却并非如此。