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作者用5只小猎狗作自身颊粘膜与骨皮质移植一期修复气管缺陷的实验,用内窥镜、光学显微镜、扫描和透射电镜研究其结果。按无菌操作于全麻下进行手术。从口腔上唇处取全层游离粘膜瓣,在胫骨上部正中取骨皮质,除去骨膜(一只例外)。骨片作成椭圆扁盘状,长20～37 mm,宽15～18 mm,厚约2 mm。在骨片周边钻很多小孔以便缝合游离粘膜瓣及其与气管缺损的缝合;在骨片中间钻5～10个稍大的孔(3～4mm),为粘膜瓣提供血管与营养。然后,在颈前作切口,于正中分开带状肌群,切开气管前筋膜并将它向前拉开,在环状软骨下,至少要保
The authors used five beagle dogs as their own buccal mucosa and cortical bone graft repair tracheal defects in the experiment, with endoscopy, optical microscopy, scanning and transmission electron microscopy results. Press aseptic surgery under general anesthesia surgery. Take a full layer of free mucosal flap from the upper lip of the mouth and remove cortical bone in the middle of the upper part of the tibia (one exception). Ellipsoidal bone plate made of flat, length 20 ~ 37 mm, width 15 ~ 18 mm, thickness of about 2 mm. Drill a lot of holes in the periphery of the bone chip to suture the free mucosal flap and suture with the tracheal defect. Drill 5 to 10 slightly larger holes (3 to 4 mm) in the middle of the bone chip to provide blood vessels and nutrition for the mucosal flap. Then, in front of the neck incision, in the middle of separation of the band muscle, cut open the anterior tracheal fascia and it pulled forward, under the annular cartilage, at least to protect