Hainau B, Reimann I, Dorph S, Rechnagel K, Henschel A, Kragh F
Department of Pathology, University of Copenhagen, Herlev Hospital, Denmark.
Clin Orthop Relat Res. 1989 Feb(239):178-84.
The area of bone-metal interaction in uncemented implants is regarded by many investigators as the key to the success or failure of the implant. The nature of the interaction is poorly understood because the zone is technically difficult to visualize and analyze. In order to test the power of modern imaging, analyzing, and metallurgical methods in this context, a well-functioning porous-coated knee prosthesis (tibial component) removed from the knee of a 65-year-old man was sectioned and examined by light microscopy, roentgenogram, scanning electron microscopy, and radiologic energy dispersive analysis. Independently, these methods demonstrated that the prosthesis was held in situ by collagenous tissue between and below the metal pellets of the prosthesis. Calcified bone did not appear to interact with the prosthesis and is probably not a major factor for prosthesis fixation. The various analytic methods described are suitable and sufficient for further exploration on a larger scale of the zone of bone-metal contact in cementless implants.
许多研究者认为，非骨水泥型植入物中骨与金属相互作用的区域是植入物成败的关键。由于该区域在技术上难以可视化和分析，因此对这种相互作用的性质了解甚少。为了测试现代成像、分析和冶金方法在这种情况下的作用，对一个从一名65岁男性膝关节取出的功能良好的多孔涂层膝关节假体（胫骨部件）进行切片，并通过光学显微镜、X线片、扫描电子显微镜和放射能谱分析进行检查。这些方法独立显示，假体是由假体金属颗粒之间和下方的胶原组织固定在原位的。钙化骨似乎未与假体相互作用，可能不是假体固定的主要因素。所描述的各种分析方法适用于并足以在更大规模上进一步探索非骨水泥型植入物中骨与金属接触区域。
