Lintner F, Böhm G, Huber M, Scholz R
Baumgartner Höhe Institute of Pathological Bacteriology, Vienna, Austria.
J Bone Joint Surg Br. 1994 Sep;76(5):824-30.
We studied the fixation of a cementless titanium femoral prosthesis partially coated with hydroxyapatite ceramic (HAC) 10.4 months after implantation. Histomorphological investigation showed extensive new bone formation between the HAC coating and the bone bed; morphometry showed bone contact indices of up to 91.60%. There were a number of resorption lacunae on the HAC coat with depths of up to 76.6 microns and widths of up to 453 microns. Our results confirmed that considerable bone remodelling had taken place and that the apatite-coated prosthesis had united with bone despite the lack of appreciable immediate press-fit. Hydroxyapatite particles which had been released did not appear to show any negative effects on the stability of the implant.
我们在植入后10.4个月研究了部分涂覆有羟基磷灰石陶瓷（HAC）的非骨水泥钛股骨假体的固定情况。组织形态学研究显示，在HAC涂层与骨床之间有广泛的新骨形成；形态测量显示骨接触指数高达91.60%。HAC涂层上有许多吸收腔，深度达76.6微米，宽度达453微米。我们的结果证实，尽管缺乏明显的即刻压配，但已经发生了相当程度的骨重塑，并且磷灰石涂层假体已与骨结合。释放出的羟基磷灰石颗粒似乎对植入物的稳定性没有任何负面影响。
