Economic Impact of Knee Revision Arthroplasty in the Brazilian Public Health System (SUS): A Comparative Analysis of Hospital Costs (2018-2025)
5 affiliations
- 1UNIVERSIDADE DE RIO VERDE - CAMPUS LUZIÂNIA, LUZIÂNIA - GO – BRASIL
- 2FACULDADE POSITIVO, CURITIBA - PR – BRASIL
- 3FACULDADE SÃO LEOPOLDO MANDIC, CAMPINAS - SP – BRASIL
- 4FACULDADE PONTIFÍCIA UNIVERSIDADE CATÓLICA DE CAMPINAS, CAMPINAS - SP – BRASIL
- 5CENTRO UNIVERSITÁRIO MAURÍCIO DE NASSAU, FORTALEZA - CE - BRASIL
Abstract
Objectives: To compare the total amount spent by the Brazilian Public Health System (SUS) on primary surgeries with that of revision surgeries between 2018 and 2025. Methods: This observational, ecological, cross-sectional study was conducted using data collected from the Department of Informatics of the Unified Health System (DATASUS) database on knee prosthesis revision surgery between 2018 and 2025. The variable used was: year. The data were tabulated for statistical analysis. Results: There were 71,891 primary and 6,824 revision hospitalizations (9.5%). Procedures rose from 8,386 (2018) to 16,090 (2025). Primary costs surpassed R$424 million, revisions R$61 million (12.6% of total). Average cost was R$5,906.48 (primary) versus R$8,961.51 (revision); each revision equals the cost of 1.52 primary surgeries. Discussion: Revision surgeries cost 52% more, reflecting higher complexity. A 1% annual reduction in revisions could save over R$4 million, allowing expansion of access to primary surgeries, which remains lower in Brazil compared to developed countries. Measures such as infection prevention protocols, staff training, and outcomes monitoring should be seen as strategic investments. Conclusion: Revision total knee arthroplasties (TKA) account for 9.5% of procedures in the Brazilian public health system (SUS), but consume 12.6% of resources. Reducing these surgeries by 1% could save more than R$4 million and expand primary arthroplasties without increasing the budget, showing that improving initial surgery is crucial for sustainability and equity in the SUS.
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BibTeX
@article{masukawa2026economic,
title = {{Economic Impact of Knee Revision Arthroplasty in the Brazilian Public Health System (SUS): A Comparative Analysis of Hospital Costs (2018-2025)}},
author = {F. Masukawa and S.T. Lipski and E.C. Artero and M.G. Casarini and D.D.S. Ferreira},
journal = {Orthopaedic Journal of Sports Medicine},
year = {2026},
month = oct,
doi = {10.1177/2325967126s00574},
url = {https://doi.org/10.1177/2325967126s00574},
note = {CC BY},
}
RIS
TY - JOUR
TI - Economic Impact of Knee Revision Arthroplasty in the Brazilian Public Health System (SUS): A Comparative Analysis of Hospital Costs (2018-2025)
AU - F. Masukawa
AU - S.T. Lipski
AU - E.C. Artero
AU - M.G. Casarini
AU - D.D.S. Ferreira
PY - 2026
DA - 2026/10/28
JO - Orthopaedic Journal of Sports Medicine
DO - 10.1177/2325967126s00574
UR - https://doi.org/10.1177/2325967126s00574
AB - Objectives: To compare the total amount spent by the Brazilian Public Health System (SUS) on primary surgeries with that of revision surgeries between 2018 and 2025. Methods: This observational, ecological, cross-sectional study was conducted using data collected from the Department of Informatics of the Unified Health System (DATASUS) database on knee prosthesis revision surgery between 2018 and 2025. The variable used was: year. The data were tabulated for statistical analysis. Results: There were 71,891 primary and 6,824 revision hospitalizations (9.5%). Procedures rose from 8,386 (2018) to 16,090 (2025). Primary costs surpassed R$424 million, revisions R$61 million (12.6% of total). Average cost was R$5,906.48 (primary) versus R$8,961.51 (revision); each revision equals the cost of 1.52 primary surgeries. Discussion: Revision surgeries cost 52% more, reflecting higher complexity. A 1% annual reduction in revisions could save over R$4 million, allowing expansion of access to primary surgeries, which remains lower in Brazil compared to developed countries. Measures such as infection prevention protocols, staff training, and outcomes monitoring should be seen as strategic investments. Conclusion: Revision total knee arthroplasties (TKA) account for 9.5% of procedures in the Brazilian public health system (SUS), but consume 12.6% of resources. Reducing these surgeries by 1% could save more than R$4 million and expand primary arthroplasties without increasing the budget, showing that improving initial surgery is crucial for sustainability and equity in the SUS.
SN - 2325-9671
ER -