胸骨乳突肌膜骨片瓣修补气管缺损的研究

sternomastoid myoperiosteal-bonelet flapfor the repair of tracheal defect

我们对９条犬的颈段气管缺损采用胸骨乳夹肌骨腹骨片瓣进行修复。其中６例成功，术后犬吠、呼吸及运动功能正常。Ｘ线片显示气管管腔开放。组织切片镜检：术后４周骨片表面已被呼吸上皮覆盖，８周～１２周骨片表面呼吸纤毛上皮已基本正常，该实验为临床应用胸锁乳穷肌骨膜骨片瓣修复气管缺损提供了依据。

Repair of the trachea is usually requiredafter resection of tracheal tissue in case oftrauma or invasive thyroid carcinoma。We havefound the sternocleimastoid myoperiosteal flapto be an idea means of reconstruction for thetrachea in invasive thyroid cancer。 In our ex-periment study , we performed trachea repairusing the sternomastoid myoperiosteal-boneletflap on 9 mongrel dogs to determind the pres- ence of mucosa on the bonelet.surface, 6 dogshad normal bark,respiratory status and behav-ior during exercise。x-rays film showed thedogs had stable and open airways, histalogicstudies confirmed that mucosa had coveredcompletely the surfase of the periosteal andbonelet in 4 weeks。3 dogs died of complica- tions.With successful reconstruction of largedefects in the canine trachea,attempts to re-pair trachea1 defects in the human are feasi-ble。