Pilliar R M
J Biomed Mater Res. 1987 Apr;21(A1 Suppl):1-33.
The fixation of orthopedic implants in bone by tissue ingrowth presents a possible solution to the problem of long-term implant loosening. To achieve this objective, metallic implants formed with porous surface coatings have been developed. This article reviews the methods proposed for fabricating such implants. Some possible problems related to loss of mechanical properties due to the processing to form the porous surface zone are described. For some of the porous-surfaced implant systems, processes have been developed to avoid the occurrence of such changes. It is particularly important at this stage of the evaluation of porous-surfaced implants in clinical situations that manufacturers are fully cognizant of the effects of processing on mechanical properties of these devices.
通过组织长入实现骨科植入物在骨中的固定，为长期植入物松动问题提供了一种可能的解决方案。为实现这一目标，已开发出具有多孔表面涂层的金属植入物。本文综述了制造此类植入物的方法。描述了一些因形成多孔表面区域的加工而导致机械性能损失的相关可能问题。对于一些多孔表面植入系统，已开发出避免此类变化发生的工艺。在临床环境中对多孔表面植入物进行评估的现阶段，制造商充分认识到加工对这些装置机械性能的影响尤为重要。
