An endoprosthetic bone component is produced from parts respectively having a projection and cavity engaged in a mutual clearance fit, and a third part of plastics material located in the space of such fit, the space and third part being dimensioned to inhibit ejection of the latter and to lock the two...http://www.google.es/patents/US4908034?utm_source=gb-gplus-sharePatente US4908034 - Endoprosthetic bone joint components