Zalzal G H, Deutsch E
Department of Pediatric Otolaryngology, Children's National Medical Center, Washington, DC 20010.
Arch Otolaryngol Head Neck Surg. 1991 Feb;117(2):155-9. doi: 10.1001/archotol.1991.01870140043003.
Management of severe laryngotracheal stenosis requires treatment with open laryngeal surgical approaches. Performing the necessary anterior, and possibly posterior, incisions to expand the cricoid and tracheal rings causes instability of the segments. Placing an intraluminal stent has several disadvantages, ranging from injury of healthy tissue to airway obstruction. The availability of an external stent would avoid many of these complications. We performed expansion laryngeal surgery in dogs and explored the use of microplates for external fixation and determined the surgical outcome if no fixation is used. The results show that microplates are very effective in maintaining external fixation and that a need for placing an intraluminal stent when a posterior cricoid split is performed exists.
严重喉气管狭窄的治疗需要采用开放性喉部手术方法。进行必要的前部（可能还有后部）切口以扩大环状软骨和气管环会导致这些节段不稳定。放置腔内支架有几个缺点，从健康组织损伤到气道阻塞不等。外部支架的应用可以避免许多此类并发症。我们在犬类身上进行了喉部扩张手术，并探索了使用微型钢板进行外部固定的方法，还确定了不使用固定时的手术结果。结果表明，微型钢板在维持外部固定方面非常有效，并且在进行环状软骨后部劈开时存在放置腔内支架的必要性。
