{"id":"a77b646e-01a8-41e3-b2b2-800a834bcbf7","slug":"less-invasive-o-arm-navigation-guided-excision-of-thoracic-extraosseous-intraforaminal-osteoblastoma-a-case-report","title":"Less invasive O-arm navigation-guided excision of thoracic extraosseous intraforaminal osteoblastoma: A case report","authors":["Shailesh Ramakant Hadgaonkar","Siddharth Manik Katkade","Pramod Dashrath Bhilare","Parag Kantilal Sancheti"],"abstract":"Background: Gross-total excision of spinal osteoblastomas remains challenging as they are typically found in close proximity to major neural and/or vascular structures. Here, we found that O-arm navigation allowed for safe/effective excision of a spinal osteoblastoma in a 29-year-old male. Case Description: A 29-year-old male presented neurologically intact with mid back pain of 8 months’ duration and 2 months of the left-sided chest wall discomfort. X-rays showed a sclerotic left D12 pedicle, while the MRI revealed an extradural lesion in extending into the left D11-12 neural foramen (i.e., hypointense on both T1- and T2-weighted images). The CT scan suggested a “floating” foraminal radiolucent lesion with surrounding vertebral body/posterior elements sclerosis and dense peripheral rim enhancement. These findings were diagnostic for an osteoblastoma. Utilizing O-arm navigation, the nidus and full extent of the lesion were excised (i.e., utilizing intralesional curettage). Two year’s postoperatively, there was no MR evidence of tumor recurrence. Conclusion: O-arm navigation provided accurate intraoperative localization to safely and fully excise a left D11– D12 spinal osteoblastoma.","thumbnailUrl":"https://sni-digital-videos.s3.amazonaws.com/articles/a77b646e-01a8-41e3-b2b2-800a834bcbf7/featured/hero-1781561242893.png","publishDate":"2022-06-23T00:00:00.000Z","doi":"10.25259/SNI_467_2022","categories":["Spine","Case Report"],"fullTextUrl":"https://surgicalneurologyint.com/wp-content/uploads/2022/06/11670/SNI-13-263.pdf"}