Harman M K, Banks S A, Hodge W A
Orthopaedic Research Laboratory, Good Samaritan Medical Center, West Palm Beach, Florida 33402, USA.
J Arthroplasty. 1997 Dec;12(8):938-45. doi: 10.1016/s0883-5403(97)90164-9.
There is increasing interest in using surface modification technology to improve the wear properties of titanium alloy and limit articular surface wear of metal and polyethylene components. This report details the in vivo wear performance of titanium nitride coating on a retrieved hip implant obtained postmortem from a low demand patient 1 year after total hip arthroplasty. Analysis of the well-functioning implant revealed that wear debris can originate from a titanium nitride coated femoral head, as delaminated surface asperities, and manifest as adhesive wear on the articular surface. The wear observed on this implant indicates that rigorous testing and evaluation of titanium nitride coating technology should be conducted prior to widespread use on total joint implants.
利用表面改性技术改善钛合金的磨损性能并限制金属和聚乙烯部件的关节表面磨损，正受到越来越多的关注。本报告详细介绍了从一名低需求患者全髋关节置换术后1年尸检获得的翻修髋关节植入物上氮化钛涂层的体内磨损性能。对功能良好的植入物的分析表明，磨损碎屑可源自氮化钛涂层的股骨头，表现为分层的表面粗糙，并在关节表面表现为粘着磨损。在该植入物上观察到的磨损表明，在全关节植入物上广泛使用之前，应对氮化钛涂层技术进行严格的测试和评估。
