Spector M, Davis R J, Lunceford E M, Harmon S L
Clin Orthop Relat Res. 1983 Jun(176):34-41.
Sixteen porous polysulfone-coated canine femoral stems were inserted into 14 dogs. Coatings were approximately 40% porous, with an average pore size of 125 or 250 microns. Bone was formed within at least about 30% of the surface pores of the implants. The tissue ingrowths filling the pores included marrow and fibrous tissue. Correlated roentgenographic and histologic observations revealed a trabecular "lamina dura" at the coating-bone interface and relatively dense trabeculae distal to the stem tip. These observations support the concept of coating femoral prostheses with porous material for cement-free stabilization.
将16个多孔聚砜涂层犬股骨柄植入14只犬体内。涂层的孔隙率约为40%，平均孔径为125或250微米。在植入物表面至少约30%的孔隙内形成了骨组织。填充孔隙的组织向内生长包括骨髓和纤维组织。相关的X线和组织学观察显示，在涂层与骨的界面处有小梁“硬骨板”，在柄尖远端有相对致密的小梁。这些观察结果支持了用多孔材料涂覆股骨假体以实现无水泥固定的概念。
