An implantable prosthetic bearing is constructed of a composite material
having a first layer and second layer. The first layer has an
articulating surface defined therein, whereas the second layer has a
engaging surface defined therein for engaging either another prosthetic
component or the bone itself. The first layer of the implantable
prosthetic bearing is constructed of a polymer such as polyethylene or
UHMWPE, whereas the second layer is constructed of a copolymer of
ethylene and an acrylate. The ethylene portion of the copolymer provides
for adhesion to the polymer of the first layer, whereas the acrylate
portion of the copolymer provides for adhesion to commonly utilized bone
cements. A method of making a prosthetic bearing is also disclosed.