Bone ingrowth into the tibial component of a canine total condylar knee replacement prosthesis.
Bone ingrowth into the tibial component of a canine total condylar knee replacement prosthesis.
复制标题
骨向犬全髁膝关节置换假体的胫骨组件内生长。
DOI：
10.1002/jor.1100070616
复制
发表时间：
1989
期刊：
影响因子：
--
通讯作者：
Galante,JO
中科院分区：
文献类型：
--
作者：
Turner,TM;Urban,RM;Sumner,DR;Skipor,AK;Galante,JO
本研究旨在评价犬全髁设计膝关节置换模型中多孔涂层胫骨部件的骨长入发生率。胫骨假体的整个下表面由钛纤维金属多孔复合材料垫覆盖。从该表面突出的是三个短的圆柱形纤维金属涂层钉，其沿着与后部螺钉一起提供器械的初始稳定。使用对线和切割夹具对6只犬进行左侧全膝关节置换术，以准备骨表面。手术后6个月处死犬。在每个胫骨部件的所有立柱中均存在广泛的骨长入。骨长入在一个部件的衬垫面积中占12%，在四个部件中占22.7 - 41.6%，在另一个部件中占81.1%。其他区域的空隙空间填充有纤维组织或器械周围填充有纤维软骨。骨板中的骨长入在固定钉附近是一致的，在不邻近固定钉的区域是可变的，这表明固定钉对骨长入骨板的模式产生了强烈的影响。
The purpose of this study was to evaluate the occurrence of bone ingrowth in a porous coated tibial component of a canine total condylar design knee replacement model. The entire undersurface of the tibial prosthesis was covered by a titanium fiber metal porous composite pad. Projecting from this surface were three short, cylindrical, fiber metal coated pegs that along with a posterior screw provided initial stabilization of the device. Left total knee replacements were performed on six dogs using alignment and cutting jigs to prepare the bony surfaces. The dogs were killed 6 months following surgery. Extensive bone ingrowth was present in all pegs of every tibial component. Bone ingrowth was present in 12% of the pad area of one component, 22.7 to 41.6% in four components, and 81.1% in another. The void spaces in other areas were filled with fibrous tissue or in the periphery of the device with fibrocartilage. Bone ingrowth in the pad was consistent in the vicinity of the pegs and was variable in regions not adjacent to the pegs, suggesting that the pegs exerted a strong influence on the pattern of bone ingrowth into the pad.