Conversion Total Hip Arthroplasty in the Era of Bundled Care Payments: Impacts on Costs of Care.

Background: Conversion hip arthroplasty is defined as a patient who has had prior open or arthroscopic hip surgery with or without retained hardware that is removed and replaced with arthroplasty components. Currently, it is classified under the same diagnosis-related group as primary total hip arthroplasty (THA); however, it frequently requires a higher cost of care.

Methods: A retrospective study of 228 conversion THA procedures in an orthopaedic specialty hospital was performed.