Haug EC, Quinlan ND, Pottanat PJ, et al. - This study was attempted to explore the trends in hospital charges and payments relative to corresponding surgeon charges and payments in a Medicare population for revision total hip arthroplasty (rTHA) for aseptic revisions, stage 1 and stage 2 revisions. Researchers applied the 5% Medicare sample database to capture hospital and surgeon charges and payments related to 4,449 patients undergoing aseptic revision, 517 for stage 1 revision, and 300 for stage 2 revision between the years of 2004 to 2014. They further assessed year-to-year variation and trends in patient demographics, Charlson Comorbidity Index, length of stay (LOS), surgeon charges, and surgeon payments. Despite stable patient complexity and decreasing LOS, hospital charges and payments relative to surgeon charges and payments have increased substantially for THA aseptic revisions, stage 1 revisions, and stage 2 revisions.