Stephanie M Wainscott,Daren L Deffenbaugh,Hengda D Liu,Andrew J Martin,Jeffrey A Rybolt,Bryan J Smith,Anthony D Zannis
申请号：
US15589216
公开号：
US10433964B2
申请日:
2017.05.08
申请国别(地区):
US
年份:
2019
代理人:
摘要：
A joint prosthesis system is suitable for cementless fixation. The system has two metal implant components and a bearing. One of the metal implant components has an articulation surface for articulation with the bearing. The other metal implant component has a mounting surface for supporting the bearing. One of the metal implant components includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.
