Previously implanted bilateral subjects can have both THAs enrolled in the study provided: 1) the specified combination of components were implanted in both, 2) all other aspects of the Inclusion/Exclusion Criteria are satisfied, 3) enrollment does not exceed the subject count specified in the Investigator Agreement, and 4) the subject agrees to a second Informed Consent document specific to the second THA. Prospective enrollment of a previously unimplanted hip is not permitted in this study.