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Title
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Cost-effectiveness of bone SPECT/CT in painful total knee arthroplasty
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Author
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Abstract
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| The purpose of this study was to quantify the economic value of bone SPECT/CT versus CT or metal artifact reduction sequence (MARS)MRI for the diagnostic assessment of recurrent moderate-to-severe pain after total knee arthroplasty (TKA). Methods: An Excel-based simulation model was developed to compare bone SPECT/CT versus CT or MARS-MRI from a payer perspective. Clinical endpoints (diagnosis- delayed or otherwise, and the subsequent treatment and complications) and their corresponding cost data (2017 U. S. dollars) were obtained by performing a best evidence review of the published literature. Studies were pooled and parameters weighted by sample size. A cost-utility analysis was performed estimating the incremental cost per quality-adjusted life years gained between bone SPECT/CT and the comparative scans. One-way (+/- 25%) sensitivity analysis was performed to gauge the model robustness. Results: For every 1,000 TKA patients, diagnostic bone SPECT/CT was expected to lead to 3-y cost savings up to $ 1,867,695 versus CT (or $ 622.6 per patient per year) and $ 1,723,435 versus MARS-MRI (or $ 574.5 per patient per year) for a payer. With corresponding incremental quality-adjusted life years gains of 39.7 and 41.0 against CT and MARS-MRI, SPECT/CT can be considered as a cost-saving and dominant strategy in the workup of persistent/recurrent pain in TKA patients. The model was limited by the still sparse literature data, was most sensitive to imaging-related sensitivity/specificity, but proved robust for varying prevalence of surgical/nonsurgical causes of pain. Conclusion: Bone SPECT/CT is a potentially highly cost-saving and dominant imaging intervention versus CT or MARS-MR scanning in patients with recurrent and persistent knee pain after TKA. |
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Language
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English
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Source (journal)
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The Journal of nuclear medicine. - New York
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Publication
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New York
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2018
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ISSN
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0161-5505
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DOI
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10.2967/JNUMED.117.205567
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Volume/pages
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59
:11
(2018)
, p. 1742-1750
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ISI
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000448962500019
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Pubmed ID
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29602816
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Full text (Publisher's DOI)
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Full text (open access)
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Full text (publisher's version - intranet only)
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