Comparison of the Hospital Cost of Primary and Revision Total Knee Arthroplasty After Cost Containment

Abstract

Revision total knee arthroplasty (TKA) consumes more time, more work, and more supplies than primary TKA. This study compared the hospital cost of primary and revision TKA after the introduction of cost-containment programs (implant standardization, clinical pathway, and competitive bid implant purchasing) at our hospital. Hospital financial records of 207 primary unilateral TKA operations and 32 revision TKA operations performed from October 1993 through September 1995 were analyzed. A cost-accounting system provided actual hospital cost data for each procedure. Accurate calculation of hospital income or loss was determined for all 239 procedures. The average hospital length of stay was 4.7 days for primary unilateral TKA and 5.1 days for revision TKA. There were 26 three-component revision operations and 6 one- or two-component revision operations. The average hospital cost was $10,421 for primary TKA and $1 1 ,906 for revision TKA. The average net hospital income (hospital revenue - hospital expense) was $3211 for primary TKA and $1853 for revision TKA. The payer mix included indemnity insurance, Medicare, Medicaid, managed care, and workmen's compensation. All payers were profitable except for Medicaid and selected managed care contracts for both primary and revision TKA. As a result of cost-containment programs, revision TKA can be profitable at our institution.

Increasing financial burden of revision total knee arthroplasty

“…As this number increases, a proportionate increase in the number of patients requiring revision surgery is expected. Revision total knee arthroplasty (TKA) consumes considerably more resources than primary TKA [8, 10]. The management of infected arthroplasty has been shown to require even more resources in terms of inpatient stay, microbiological investigation and multiple stage procedures than that of aseptic failure [4].…”

Quality of life and clinical outcome in salvage revision total knee replacement: hinged vs. total condylar design

“…An increasing number of revisions are therefore seen, and more are to be expected in the future. The annual incidence of prosthetic revisions has increased to 7.8% in the United States [9]. In the Swedish knee arthroplasty register revisions account for approximately 13% of all total knee arthroplasties [12].…”

Performing Revision Arthroplasty Increases Surgeon and Practice Volumes Through the Generation of Subsequent Cases: A Retrospective Study

“…Common causes for revision arthroplasty include aseptic loosening, wear, fracture, instability, or infection [ [5] , [6] , [7] , [8] , [9] , [10] ]. Compared to primary arthroplasties, revision arthroplasties are higher-cost procedures due to longer procedure times, more expensive implants, longer hospital stays, greater infection rates, and a higher frequency of complication [ 3 , [11] , [12] , [13] , [14] , [15] ]. Additionally, one study shows that the referral pattern for revision arthroplasty places a large portion of the burden of these cases on tertiary care centers [ 16 ].…”