Bal B Sonny, Garino Jonathan, Ries Michael, Oonishi Hironobu
Department of Orthopedic Surgery, University of Missouri Health Care, MC213, DC053.00, One Hospital Dr, Columbia, MO 65212, USA.
J Knee Surg. 2007 Oct;20(4):261-70. doi: 10.1055/s-0030-1248055.
Ceramic bearings have been used extensively in total hip arthroplasty, both in ceramic-on-polyethylene and in ceramic-on-ceramic articulations. Ceramic articulations in total hip arthroplasties offer the advantage of lower wear rates compared to the standard metal-polyethylene coupling. In total knee arthroplasty, few data have examined the application of ceramic bearings. The long-term failure mode of total knee arthroplasties is related to wear and failure of the polyethylene in the articulation. Wear data from knee simulators and in vitro investigations suggest ceramics may offer a superior countersurface in total knee bearings through decreased polyethylene wear rates and a lower incidence of long-term failures associated with wear. This article reviews the existing data related to the application of ceramic biomaterials in total knees and evaluates the role ceramic surfaces may have in extending the longevity of total knee arthroplasty.
陶瓷轴承已广泛应用于全髋关节置换术，包括陶瓷对聚乙烯和陶瓷对陶瓷的关节置换。与标准的金属-聚乙烯组合相比，全髋关节置换术中的陶瓷关节具有磨损率较低的优势。在全膝关节置换术中，很少有数据研究陶瓷轴承的应用。全膝关节置换术的长期失效模式与关节中聚乙烯的磨损和失效有关。膝关节模拟器和体外研究的磨损数据表明，陶瓷可能通过降低聚乙烯磨损率以及减少与磨损相关的长期失效发生率，为全膝关节轴承提供更好的对磨面。本文综述了与陶瓷生物材料在全膝关节中应用相关的现有数据，并评估了陶瓷表面在延长全膝关节置换术使用寿命方面可能发挥的作用。
