ArticleJournal of neurosurgery. Case lessons2025
Management of intercostal artery pseudoaneurysm following posterior pedicle screw insertion: illustrative case.
Article in Journal of neurosurgery. Case lessons, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundPedicle screw insertion in posterior spinal surgery can cause vascular injuries, including rare intercostal artery pseudoaneurysms, which are typically discovered incidentally during reimaging. Onyx embolization is an effective treatment for small artery pseudoaneurysms. OBSERVATIONS: A 36-year-old man who had initially presented with back pain that remained unresponsive to nonsteroidal anti-inflammatory drugs was diagnosed with a T7-8 sarcomatous lesion confirmed by magnetic resonance imaging and biopsy. He underwent a posterior resection and T5-10 stabilization with pedicle screws. After surgery, significant hemorrhage led to his transfer for digital subtraction angiography, which revealed a prominent vascular tumor blush and a pseudoaneurysm of the right T5 intercostal artery due to screw placement. The tumor and pseudoaneurysm were effectively embolized using superselective catheterization and Onyx. LESSONS: This report highlights the dangers of intercostal artery damage from posterior spinal screws, emphasizing the need for meticulous postoperative imaging. Onyx embolization is an effective treatment for such complications. https://thejns.org/doi/10.3171/CASE24291.
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