Abstract: An artificial joint system is provided herein. The system includes an artificial joint implantable within an individual, the artificial joint including artificial joint members each having an articulating surface and a bone attachment surface, wherein the articulating surfaces are in articulative engagement therebetween. The system further includes a detection system implanted within, or attached to, the artificial joint members and/or the bones to which the members are attached. The detection system serves for communicating an information signal receivable outside the body, the information signal indicative of a parameter associated with displacement between an artificial joint member and a bone to which it is attached and/or to wear or relative displacement of the articulating surfaces.