Devices, apparatus, and systems for replacing at least some of the functionality of the natural hip joint and associated methods of implantation are disclosed. In one aspect a prosthetic acetabular cup system is provided. The system includes a metal shell comprising an outer surface for securely engaging a prepared portion of an acetabulum, an opposing inner surface, and at least one snap-fit engagement feature associated with the inner surface. The metal shell has a thickness less than about 1.0 mm between the outer surface and the inner surface. The system also includes a pliable articulating component having an outer surface including at least one snap-fit engagement feature sized and shaped to snap-fittingly engage the at least one snap-fit engagement feature of the metal shell. The pliable articulating component also includes an inner surface for articulatingly receiving a femoral head. The second component has a thickness less than about 3.0 mm.
