摘要 |
<p>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 augments.</p> |
申请人 |
DEPUY SYNTHES PRODUCTS LLC |
发明人 |
DERUNTZ, STEPHANIE, M.;DEFFENBAUGH, DAREN, L.;LIU, HENGDA, D.;MARTIN, ANDREW, J.;RYBOLT, JEFFREY, A.;SMITH, BRYAN, J.;ZANNIS, ANTHONY, D. |