两侧声带正中位固定症，由于气道狭窄出现吸气性呼吸困难和喘鸣，为了确保气道通畅，往往要作气管切开术。以往采用Ｗｏｏｄｍａｎ法声门开大术，手术较为复杂，有需要二次手术等缺点。１９８４年，Ｅｊｎｅｌｌ发表了经甲状软骨前方行声带上下缝合向外牵引声带声门开大术。该 Vocal cord on both sides of the median fixed disease, due to airway stenosis aspiration dyspnea and wheezing, in order to ensure airway patency, often to be tracheostomy. In the past, the use of Woodman method open door surgery, surgery is more complex, there is the need for secondary surgery and other shortcomings. In 1984, Ejnell published a large suture through the vocal cords in front of the thyroid cartilage to suture the vocal cord glottis outwards. This