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Comparison of patient demographics, utilization trends, and costs of total ankle arthroplasty and ankle fusion in the United States from 2010 to 2019

  • Orthopaedic Surgery
  • Published:
Archives of Orthopaedic and Trauma Surgery Aims and scope Submit manuscript

Abstract

Introduction

Contemporary studies evaluating utilization and trends of total ankle arthroplasty (TAA) and ankle fusion (AF) for tibiotalar osteoarthritis are sparse. Therefore, the purpose of this study was to utilize a nationwide administrative claims database from 2010 to 2019 to compare: (1) baseline demographics; (2) utilization, (3) in-hospital length of stay (LOS), and (4) costs of care.

Methods

Using the PearlDiver database, a retrospective query from January 1st, 2010 to December 31st, 2019 was performed for all patients who underwent TAA and AF for tibiotalar osteoarthritis. Baseline demographics, comorbidities, and geographic utilization were compared using Pearson Chi-square analyses. Linear regression was used to compare differences in procedure utilization and in-hospital LOS during the study interval. Reimbursements between the two cohorts during the study interval were compared. A p value less than 0.05 was statistically significant.

Results

In total, 14,248 patients underwent primary TAA (n = 5544) or AF (n = 8704). Patients undergoing AF were generally younger (< 60) with greater comorbidity burden driven by hypertension, diabetes mellitus, obesity, and tobacco use compared to TAA patients (p < 0.0001). Over the study interval, TAA utilization remained constant (912 vs 909 procedures; p = 0.807), whereas AF utilization decreased by 42.5% (1737 vs 998 procedures; p = 0.0001). Mean in-hospital LOS for patients undergoing TAA decreased (2.5 days vs. 2.0 days, p = 0.0004), while AF LOS increased (2.6 days vs. 3.5 days, p = 0.0003). Reimbursements for both procedures significantly declined over the study interval (TAA: $4559–$2156, AF: $4729–$1721; p < 0.013).

Conclusion

TAA utilization remained constant, while AF utilization declined by 42.5% from 2010 to 2019. There was divergence in the LOS for TAA versus AF patients. Both procedures significantly declined by over 50% in reimbursements over the study interval.

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Acknowledgements

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Funding

No funding was received for conducting this study.

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Authors and Affiliations

  1. Department of Orthopaedic Surgery, Maimonides Medical Center, 927 49th Street, Brooklyn, NY, 11219, USA

    Adam M. Gordon, Aaron W. Lam, Ivan J. Golub, Jordan B. Pasternack & Amr A. Abdelgawad

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  1. Adam M. Gordon
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  2. Aaron W. Lam
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  3. Ivan J. Golub
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  4. Jordan B. Pasternack
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  5. Amr A. Abdelgawad
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Correspondence to Adam M. Gordon.

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The study was exempt from our institution’s Institutional Review Board (IRB) approval process.

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This was an observational study of publicly available, deidentified data. The Maimonides Medical Center Research Ethics Committee has confirmed that no ethical approval is required.

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Gordon, A.M., Lam, A.W., Golub, I.J. et al. Comparison of patient demographics, utilization trends, and costs of total ankle arthroplasty and ankle fusion in the United States from 2010 to 2019. Arch Orthop Trauma Surg 143, 2913–2918 (2023). https://doi.org/10.1007/s00402-022-04481-7

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  • DOI: https://doi.org/10.1007/s00402-022-04481-7

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