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Cited by 560

The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.

Cost-effectiveness of Total Knee Arthroplasty in the United States: Patient Risk and Hospital Volume

Open access
Losina, Elena, Walensky, Rochelle P., Kessler, Courtenay L., Emrani, Parastu S., Reichmann, William M., Wright, Elizabeth A., Holt, Holly L., Solomon, Daniel H., Yelin, Edward, Paltiel, A. David, Katz, Jeffrey N.·2009·Archives of Internal Medicine

Abstract

BACKGROUND: Total knee arthroplasty (TKA) relieves pain and improves quality of life for persons with advanced knee osteoarthritis. However, to our knowledge, the cost-effectiveness of TKA and the influences of hospital volume and patient risk on TKA cost-effectiveness have not been investigated in the United States. METHODS: We developed a Markov, state-transition, computer simulation model and populated it with Medicare claims data and cost and outcomes data from national and multinational sources. We projected lifetime costs and quality-adjusted life expectancy (QALE) for different risk populations and varied TKA intervention and hospital volume. Cost-effectiveness of TKA was estimated across all patient risk and hospital volume permutations. Finally, we conducted sensitivity analyses to determine various parameters' influences on cost-effectiveness. RESULTS: Overall, TKA increased QALE from 6.822 to 7.957 quality-adjusted life years (QALYs). Lifetime costs rose from $37,100 (no TKA) to $57 900 after TKA, resulting in an incremental cost-effectiveness ratio of $18,300 per QALY. For high-risk patients, TKA increased QALE from 5.713 to 6.594 QALY, yielding a cost-effectiveness ratio of $28,100 per QALY. At all risk levels, TKA was more costly and less effective in low-volume centers than in high-volume centers. Results were insensitive to variations of key input parameters within policy-relevant, clinically plausible ranges. The greatest variations were seen for the quality of life gain after TKA and the cost of TKA. CONCLUSIONS: Total knee arthroplasty appears to be cost-effective in the US Medicare-aged population, as currently practiced across all risk groups. Policy decisions should be made on the basis of available local options for TKA. However, when a high-volume hospital is available, TKAs performed in a high-volume hospital confer even greater value per dollar spent than TKAs performed in low-volume centers.

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Metadata

Authors
Losina, E., Walensky, R. P., Kessler, C. L., Emrani, P. S., Reichmann, W. M., Wright, E. A., Holt, H. L., Solomon, D. H., Yelin, E., Paltiel, A. D., & Katz, J. N.
Venue
Archives of Internal Medicine
Published
2009-06-22
Volume
169
Issue
12
Pages
1113
ISSN
0003-9926 (ISSN-L)
OpenAlex
W1586069835
Cited by
560
References
32
FWCI
26.45
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Cost-effectiveness of Total Knee Arthroplasty in the United States: Patient Risk and Hospital Volume. https://app.cochat.ai/papers/10.1001/archinternmed.2009.136
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Losina, E., Walensky, R. P., Kessler, C. L., Emrani, P. S., Reichmann, W. M., Wright, E. A., Holt, H. L., Solomon, D. H., Yelin, E., Paltiel, A. D., & Katz, J. N. (2009). Cost-effectiveness of Total Knee Arthroplasty in the United States: Patient Risk and Hospital Volume. Archives of Internal Medicine. https://doi.org/10.1001/archinternmed.2009.136

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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