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Purpose <p>To determine the viability of preoperative bone health optimization for the prevention of revision surgery due to osteoporosis among adult spinal deformity (ASD) patients using break-even economic modeling.</p> Methods <p>The cost of a DXA scan and total 2-year cost of revision ASD surgery were obtained from institutional records. 2-Year ASD revision rates among patients with osteoporosis were obtained from the literature. An open-access database was used to determine the mean retail price for Teriparatide, Denosumab, and Zoledronic acid. Total optimization costs included the costs of a DXA scan and medication treatment. Costs were adjusted for inflation using the Consumer Price Index to 2023 U.S. dollars. A break-even economic analysis was performed to determine the absolute risk reduction (ARR) and number needed to treat (NNT) to economically justify each treatment.</p> Results <p>DXA scan ($349.28) and revision ASD surgery ($147,731.78) costs were obtained from institutional records. The cost of optimizing patients with DXA and Teriparatide, Denosumab, and Zoledronic acid was $4,410.32, $3,832.78, and $1,552.61, respectively. Each treatment modality was cost-effective at all revision ASD surgery rates. Teriparatide was economically justified if the initial revision rate decreased by 2.99% (NNT = 34), Denosumab by 2.59% (NNT = 39), and Zoledronic acid by 1.05% (NNT = 96).</p> Conclusion <p>Preoperative bone health optimization among ASD patients undergoing surgery is highly cost-effective in the prevention of revision surgery due to osteoporosis. Teriparatide would need to prevent 1 revision surgery out of 34 ASD surgeries, Denosumab 1 out of 39, and Zoledronic acid 1 out of 96 to break-even on costs.</p>

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Optimizing bone health for the prevention of revision adult spinal deformity surgery: a break-even analysis

  • 期刊论文

  • 发表日期：

    2025年4月11日

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  • Andrew H. Kim,
  • William ElNemer,
  • Marc Greenberg,
  • Micheal Raad,
  • Khaled M. Kebaish

摘要

Purpose

To determine the viability of preoperative bone health optimization for the prevention of revision surgery due to osteoporosis among adult spinal deformity (ASD) patients using break-even economic modeling.

Methods

The cost of a DXA scan and total 2-year cost of revision ASD surgery were obtained from institutional records. 2-Year ASD revision rates among patients with osteoporosis were obtained from the literature. An open-access database was used to determine the mean retail price for Teriparatide, Denosumab, and Zoledronic acid. Total optimization costs included the costs of a DXA scan and medication treatment. Costs were adjusted for inflation using the Consumer Price Index to 2023 U.S. dollars. A break-even economic analysis was performed to determine the absolute risk reduction (ARR) and number needed to treat (NNT) to economically justify each treatment.

Results

DXA scan ($349.28) and revision ASD surgery ($147,731.78) costs were obtained from institutional records. The cost of optimizing patients with DXA and Teriparatide, Denosumab, and Zoledronic acid was $4,410.32, $3,832.78, and $1,552.61, respectively. Each treatment modality was cost-effective at all revision ASD surgery rates. Teriparatide was economically justified if the initial revision rate decreased by 2.99% (NNT = 34), Denosumab by 2.59% (NNT = 39), and Zoledronic acid by 1.05% (NNT = 96).

Conclusion

Preoperative bone health optimization among ASD patients undergoing surgery is highly cost-effective in the prevention of revision surgery due to osteoporosis. Teriparatide would need to prevent 1 revision surgery out of 34 ASD surgeries, Denosumab 1 out of 39, and Zoledronic acid 1 out of 96 to break-even on costs.