CASE REPORT
Apresentamos o caso de um homem de 61 anos com fratura do odontoide tipo I em C2, tratado com imobilização externa, que desenvolveu, dez meses depois, instabilidade C1-C2, necessitando de tratamento cirúrgico. O paciente foi encaminhado para tratamento cirúrgico após falha do tratamento conservador. A instabilidade C1-C2 foi diagnosticada com base em radiografia dinâmica e ressonância magnética. Houve melhora clínica após a cirurgia; as radiografias pós-operatórias revelaram fixação adequada da instabilidade e posicionamento correto dos parafusos, com acompanhamento sem intercorrências.
We present a 61 year-old male patient with Type I C2 odontoid fracture, treated with external immobilization that developed C1-C2 instability ten months later that required surgical treatment. The patient was selected for surgical treatment after the failure of conservative treatment. The C1-C2 instability was diagnosed based on dynamic X-Ray, MRI. He improved clinically after the surgery; the postoperative images X-Ray revealed adequate instability fixation and correct screw placement, with uneventful follow up.
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1Department of Neurosurgery, Unidade Local de Saúde Viseu, Dão-Lafões, Portugal.
2Medical Faculty, Coimbra University, Coimbra, Portugal.
Received Dec 19, 2025
Corrected Jan 11, 2026
Accepted Feb 2, 2026
