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现有的多种重建喉气管方法效果不佳的原因是:①狭窄常复发;②移植物收缩或脱落;③皮肤移植不适用于呼吸道上皮缺损;④骨和软骨可能被吸收;⑤自体或同种移植组织未成活;⑥手术需分几期完成;⑦死亡率和发病率高;⑧赝复法往往难以成功。作者认为,理想的重建技术应一期完成;提供适当的粘膜衬里和坚固的支架;成功率高。为此设计了一种带血管和胸膜的游离肋骨复合移植方法,并用显微外科技术吻合血管,用8只狗作了实验。术前每只狗给四环素2克/日,共4日(作为标记用)。全麻,切取右侧第6肋骨一段,上附袖套状软组织和胸廓内动静脉。然后行颈前正中垂直切口,达喉部后向左
The reasons for the poor performance of the current methods for reconstructing the laryngotracheal tube are as follows: ① recurrence of stenosis; ② contraction or shedding of the graft; ③ skin transplantation is not suitable for respiratory epithelial defects; ④ bones and cartilage may be absorbed; Transplantation of tissue is not survival; ⑥ surgery need to be completed in several phases; ⑦ high mortality and morbidity; ⑧ pseudopuncture method often difficult to succeed. In the authors' opinion, the ideal reconstruction technique should be completed in one installment; the proper mucosal lining and firm stent are provided; the success rate is high. To this end, we designed a free rib composite graft with blood vessels and pleura, and used the technique of microsurgery to fit the blood vessels. The experiment was conducted with 8 dogs. Preoperative tetracycline for each dog 2 g / day, a total of 4 days (as a marker). General anesthesia, cut a section of the right 6th rib, attached to the cuff-like soft tissue and thoracic artery and vein. Then line the middle of the neck vertical incision, up to the throat left