#$%^&*AU2012227340B220140918.pdf#####ABSTRACT An acetabular shell for use in hip arthroplasty. The shell includes a first wall having an outer surface, an inner surface, and a rim. The shell further includes a second wall extending from the outer surface of the first wall. The second wall has an outer surface, an inner surface, and a rim. The rim of the second wall is spaced outwardly from the rim of the first wall.1/6 20 32 30 32 30 28 22 14 26 16 12 18 2 FIG. 1