“…The route to the anterior cervical spine through a corridor surrounded by carotid artery laterally, and trachea and oesophagus medially, was realized to be safe (Cloward, 1958). Today it is used more commonly for the surgical treatment of other cervical spine diseases including cervical spondylotic myelopathy, tumor, infection, or trauma of the vertebral bodies (Kiray et al, 2005). The most frequent complication secondary to anterior approach has been known as the injury of the recurrent laryngeal and superior laryngeal nerves resulting in vocal cord paralysis (Smith and Robinson, 1958;Cloward, 1962;Jacobson, 1979;Saunders et al, 1991;An et al, 1994).…”