Mistry Jaydev B, Chughtai Morad, Elmallah Randa K, Diedrich Aloise, Le Sidney, Thomas Melbin, Mont Michael A
Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, 2401 West Belvedere Avenue, Baltimore, MD, 21215, USA.
J Orthop Traumatol. 2016 Mar;17(1):1-6. doi: 10.1007/s10195-016-0391-1. Epub 2016 Feb 11.
Trunnionosis is defined as wear of the femoral head-neck interface and has recently been acknowledged as a growing cause of total hip arthroplasty failure. Some studies have reported that it accounts for up to 3 % of all revisions. The exact cause of trunnionosis is currently unknown; however, postulated etiologies include modular junction wear, corrosion damage, and metal ion release. Additionally, implant design and trunnion geometries may contribute to the progression of component failure. In order to aid in our understanding of this phenomenon, our aim was to present the current literature on (1) the effect of femoral head size on trunnionosis, (2) the effect of trunnion design on trunnionosis, (3) localized biological reactions associated with trunnionosis, and (4) gross trunnion failures. It is hoped that this will encourage further research and interest aimed at minimizing this complication.
股骨柄磨损是指股骨头-颈界面的磨损，最近已被公认为是全髋关节置换失败的一个日益常见的原因。一些研究报告称，它在所有翻修手术中占比高达3%。股骨柄磨损的确切原因目前尚不清楚；然而，推测的病因包括模块化连接处磨损、腐蚀损伤和金属离子释放。此外，植入物设计和股骨柄几何形状可能会导致部件故障的进展。为了帮助我们理解这一现象，我们的目的是介绍当前关于以下方面的文献：（1）股骨头大小对股骨柄磨损的影响，（2）股骨柄设计对股骨柄磨损的影响，（3）与股骨柄磨损相关的局部生物反应，以及（4）严重的股骨柄故障。希望这将鼓励进一步的研究，并激发旨在尽量减少这种并发症的兴趣。
