Background: To explore the national inpatient trends, regional variations, associated diagnoses, and outcomes of vertebral augmentation (vertebroplasty and kyphoplasty) in the USA from 2004 to 2017.
Methods: Data from the National Inpatient Sample were used to study hospitalization records for percutaneous vertebroplasty and kyphoplasty. Longitudinal projections of trends and outcomes, including mortality, post-procedural complications, length of stay, disposition, and total hospital charges were analyzed.
Results: Following a period of decreased utilization from 2008 to 2012, hospitalizations for vertebroplasty and kyphoplasty plateaued after 2013. Total hospital charges and overall financial burden of hospitalizations for vertebroplasty and kyphoplasty increased to a peak of $1.9 billion (range $1.7-$2.2 billion) in 2017. Overall, 8% of procedures were performed in patients with a history of malignancy. In multivariable modeling, lung cancer (adjusted OR (aOR) 2.6 (range 1.4-5.1)) and prostate cancer (aOR 3.4 (range 1.2-9.4)) were associated with a higher risk of mortality. The New England region had the lowest frequency of routine disposition (14.1±1.1%) and the lowest average hospital charges ($47 885±$1351). In contrast, 34.0±0.8% had routine disposition in the West Central South region, and average hospital charges were as high as $99 836±$2259 in the Pacific region. The Mountain region had the lowest number of procedures (5365±272) and the highest mortality rate (1.2±0.3%).
Conclusion: National inpatient trends of vertebroplasty and kyphoplasty utilization remained stable after a period of decline from 2008 to 2012, while the financial burden of hospitalizations increased. Despite recent improvements in outcomes, significant regional variations persisted across the USA.
Keywords: complication; economics; intervention; political; spine.
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