Introduction: During upper cervical anterior fusion involving C2. the branches of the superior laryngeal and hypoglossal nerves traversing the operative field are at risk for injury. mainly from excessive retraction and/or incidental ligation. These injuries would cause postoperative dysphagia and/or dysphonia that are often transient but might sometimes persist for several months. https://kdaicxlxj4ap3n.aioblogs.com/87843824/instructivo-para-mitigar-retos-y-desafíos-de-las-pymes-para-exportar-aceite-de-aguacate-hass-con-destino-a-alemania