Recent Medicare Billing Trends of Hospitals and Surgeons for Revision Hip and Knee Total Joint Arthroplasty: Is the Value of a Surgeon's Work Decreasing?

Background: Revision hip and knee total joint arthroplasty (TJA) is associated with higher health care costs and work burden than primary TJAs. However, previous studies demonstrated a decrease in the value of reimbursements for revision TJA, causing concerns for hospitals and surgeons regarding the financial sustainability of these resource-expensive procedures. This study aimed to investigate the Medicare billing trends of hospitals and surgeons for revision TJA between 2017 and 2022.

Methods: Medicare claims and payments for revision TJA were identified from the Centers for Medicare and Medicaid Services Part A and B databases. Hospital claims for revision TJA were identified through Diagnostic-Related Groups (467, 468). Surgeon claims were identified using Current Procedural Terminology codes for revision hip (27134, 27137, 27138) and knee (27486, 27487) TJA. Yearly charges, reimbursements, and markup ratios (MR = charge/reimbursement) were analyzed. All monetary values were adjusted to the 2022 U.S. dollars.

Results: A total of 43,125 surgeons and 152,974 hospital claims were included in this study. From 2017 to 2022, the total volume of revision TJA decreased by 19.4%. Hospital reimbursements remained relatively unchanged, with a decrease of 1.4%, while hospital charges increased by 11.8%, resulting in a 13.3% increase in the MR. For surgeons, reimbursements decreased by 13.8%, and charges decreased by 11.0%, leading to a 3.3% increase in the MR. The proportion of surgeon reimbursement to hospital reimbursement decreased from 8.5 to 7.5%.

Conclusions: The comparison of the billing trends of hospitals and surgeons showed the relatively stable value of hospital reimbursement while the value of surgeon reimbursement continued to decline, implying the decreasing fiscal value of physicians' work. The study suggests the need for sustainable financial incentives for surgeons performing revision TJA and strategies to control hospital charges to alleviate financial burdens and improve patient access to revision TJA.