喉气管缺损所致喉气管狭窄临床处理十分棘手，重建缺损需恢复喉和气管的轨骨性支持结构；目前常用的成形材料有软骨、骨、肌肉和人工材料，疗效不一.重建缺损的喉气管软骨支架最理想的方法是诱导宿主自体软骨再生，但迄今尚未提取出能诱导软骨形成的物质。目前已提取出骨形成蛋 Laryngeal tracheal defects caused by laryngotracheal stenosis is very difficult to deal with the clinical treatment of reconstructed defects need to restore the larynx and tracheal support structure; commonly used forming materials with cartilage, bone, muscle and artificial materials, with different effects. Reconstruction of missing throat Tracheal cartilage scaffolds the most ideal way is to induce host autologous cartilage regeneration, but so far not yet extract substances that can induce cartilage formation. Bone formation has been extracted from eggs