2025 Proffered Presentations
V060: ENDONASAL ANTERIOR C1 ARCH REMOVAL, ODONTOIDECTOMY, AND INFERIOR CLIVUSECTOMY FOR CERVICOMEDULLARY STENOSIS
Juan Pablo Navarro Garcia de Llano1; Maria Guevera, MD2; J. Emiliano Sanchez-Garavito, MD1; Krishnan Ravindran, MD1; Angela M Donaldson, MD1; Ian A Buchanan1; Kaisorn L Chaichana, MD1; Joao Paulo Cavalcante de Almeida, MD1; 1Mayo Clinic Florida; 2Hospital El Cruce - Nestor Kirchner
We present the case of a 53-year-old woman with headaches and new onset left sided hemiparesis and paresthesia. Imaging revealed platybasia and abnormal ligament calcification at the craniocervical junction causing spinal cord compression. Surgical intervention involved a two-stage procedure: an endoscopic endonasal approach for anterior C1 arch removal, odontoidectomy, and inferior clivusectomy, followed by occiput to C4 posterior fusion. Post-operative imaging confirmed successful decompression at this level. The patient showed significant improvement at 6-week follow-up.