Gross A E, Dust W N
Department of Surgery, University of Toronto, Ont.
Can J Surg. 1997 Aug;40(4):310-2.
The smaller acetabular components used in total hip replacement may have a polyethylene liner that is too thin, resulting in higher polyethylene stress and an increased potential for wear. The authors present a case that highlights the problem of acute polyethylene fracture. To compensate for the thinness of the polyethylene, the authors recommend the use of a smaller head size to allow polyethylene thickness of at least 8 mm.
全髋关节置换术中使用的较小髋臼部件可能配有过薄的聚乙烯内衬,导致聚乙烯应力更高,磨损可能性增加。作者介绍了一个突出急性聚乙烯骨折问题的病例。为弥补聚乙烯的薄度,作者建议使用较小的股骨头尺寸,以使聚乙烯厚度至少达到8毫米。