Artificial wear resistant plug for mounting to existing joint bone
An artificial and wear-resistant plug mounted to an existing bone associated with a joint structure and which includes a three dimensional and composite platicized material. An end surface of an existing bone is reconditioned in preparation for engagement of the plug thereto and in order to define a reconditioned artificial wear surface. In a preferred application, a pair end mounted plugs are arranged in opposing fashion between first and second bones and respectively define a male receiving end and a female socket. A lubricant retaining and cartilage defining exterior layer is applied to one or both of opposing surfaces of the plugs.
1. An artificial joint assembly adapted for installation to preconditioned ends of first and second bones, said joint assembly comprising:
a male composite implant adapted to be secured to a preconditioned end of the first bone, said male implant exhibiting a first joint defining surface;
a female composite implant adapted to be secured to a preconditioned end of the second bone, said female implant exhibiting a second joint defining surface;
a first stem securing to a rear side of the male implant and adapted to being anchored within an interior of the first bone extending inwardly from the first preconditioned end;
a second stem securing to a rear side of the female implant and adapted to being anchored within an interior of the second bone extending inwardly from the second preconditioned end;
each of said stems further having a shaped mounting end seating within a recess configured rear face defined in each of said male and female implants;
said recess configured rear faces of said male and female implants each futher having interconnecting and inwardly tapered side walls and end walls, said end walls futher having laterally inwardly projecting keyed portions projecting into a three dimensional interior defined by said side and end walls, said shaped mounting ends of said stems each exhibiting a mating profile for engaging to said recess configured rear faces such that said interconnecting side and end walls with inwardly projecting keyed portions collectively define a mating and inwardly recessed taper configuration with which is fixedly secured said stem mounting end; and
said recess configured rear faces of said implants each futher including a centrally supported and upwardly projecting anchor portion which is received within a mating recess aperture centrally defined in each of said shaped mounting ends of said stems, an open inserting end of said stems revealing an accessible interior exhibiting pluralities of surface area increasing and inwardly projecting keyed portions exhibited upon open inner surfaces of the said stem in communication with a hollowed bone interior, said keyed portions extending around an inner perimeter of said open interior surface of said stem in communication with an interior location of the bone and which are adapted to promoting an increase in natural bone growth and adhesion through contact with existing bone marrow.