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Life sciences · Journal article
Global Spine Journal · October 13, 2026
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Study Design Retrospective cohort study. Objective To investigate the association between androgen deprivation therapy (ADT), vertebral compression fracture (VCF) incidence, and subsequent vertebral augmentation (vertebroplasty/kyphoplasty) utilization in adult men with prostate cancer. Methods Adult men with prostate cancer were stratified by ADT exposure and matched 1:1 to non-ADT controls on demographics, comorbidities, and bone health. Primary outcomes were VCF incidence at 3 months, 1 year, 3 years, and 5 years and vertebral augmentation utilization. Secondary outcomes included posterior spinal instrumentation, dependency, fracture burden, and bisphosphonate/denosumab use. Risks were compared using Kaplan-Meier and Cox proportional hazards models, with chi-square tests for categorical outcomes. Results After matching, 122,511 patients were included per cohort. ADT was associated with higher 5-year VCF incidence (1.95% vs 1.29%; HR, 1.49; p < 0.001), representing a 54% relative increase (NNH = 143), with consistent findings at earlier time points (all p < 0.05). Among 2,926 matched pairs with VCFs, vertebral augmentation utilization was higher with ADT (7.4% vs 5.1%; p < 0.001), representing a 45% relative increase. Posterior instrumentation (2.1% vs 2.0%) and dependency (7.5% vs 7.7%) were similar, while fracture burden did not differ (p = 0.07). Conclusions ADT is associated with increased VCF incidence and vertebral augmentation utilization without differences in posterior instrumentation. This pattern is consistent with osteoporotic insufficiency fractures and supports bone health screening and preventive therapy at ADT initiation.