Because of excessie wear and tissue reaction, polytetrafluoroethylene was replaced by high-density polyethylene (HDPE) and later by ultrahigh molecular weight polyethylene (UHMWPE).

• 由于聚四氟乙烯的磨损和组织反应严重，因而被高密度聚乙烯（HDPE）以及后来的超高分子聚乙烯（UHMWPE）所取代。