用20只兔麻醉下切除气管前壁一块,使成缺损,将自体颈前肌(胸骨甲状肌)带蒂血管肌瓣修补。全部缺损愈合佳,无漏气、感染。术后24周,气管假复层纤毛上皮已覆盖肌瓣区,无痰液积存,颈部活动不受限,排痰通气恢复,效果良好。但术后早期局部水肿,后期瘢痕挛缩均可造成气管内腔不同 Twenty rabbits were anesthetized with a piece of the anterior tracheal wall under anesthesia to make a defect. The anterior cervical muscle of the sternum (sterno-thyroidus) was pedicled with pedicled vascular myocutaneous flap. All defects healing well, no leakage, infection. Twenty - four weeks after operation, the tracheal pseudostratified ciliated epithelium covered the muscle flap area, no sputum accumulation, no limitation of cervical activity and recovery of sputum and ventilation, with good effect. However, early postoperative local edema, post-scar contracture can cause different tracheal lumen