PROSTHESIS WITH SURFACES HAVING DIFFERENT TEXTURES AND METHOD OF MAKING THE PROSTHESIS

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 bea...

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Bibliographische Detailangaben
Hauptverfasser:	ZANNIS ANTHONY D, LIU HENGDA D, WAINSCOTT STEPHANIE M, DEFFENBAUGH DAREN L, MARTIN ANDREW J, RYBOLT JEFFREY A, SMITH BRYAN J
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BANDAGES, DRESSINGS OR ABSORBENT PADS CASTING CHEMISTRY DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FERROUS OR NON-FERROUS ALLOYS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MEDICAL OR VETERINARY SCIENCE METALLURGY ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PERFORMING OPERATIONS POWDER METALLURGY PROSTHESES TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OR PROTECTION OF EYES OR EARS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	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.