摘要
背景:临床上经常遇到长距离、大范围的气管狭窄或缺损需气道重建。目的:观察动物自体软骨移植在喉气管重建中的应用效果。方法:切除新西兰兔环状软骨及部分气管前壁,制造喉气管损伤,取自体肋软骨膜移植修复,移植后8-24周处死存活动物,观察修复情况。结果与结论:大体观察:动物呼吸通畅,饮食正常,植入软骨膜与周边组织结合紧密,创口愈合良好,无肉芽组织及瘢痕形成,管腔内表面光滑且有黏膜覆盖。光镜结果显示:创口处有黏膜生成,外层有纤维细胞及横纹肌细胞,少量新生软骨形成,软骨细胞与肌细胞链接紧密。结果提示,自体软骨移植可以应用于动物喉气管重建,且具有很好的效果。
BACKGROUND：Long-distance, large-range tracheal stenosis or defects are often seen in clinic, and laryngotracheal reconstruction is stil a difficult problem. OBJECTIVE：To investigate the effects of animal autologous cartilage transplantation in laryngotracheal reconstruction. METHODS：The cricoid cartilage and partial anterior tracheal wal from New Zealand rabbits were resected to prepare laryngotracheal defect models. Then, autologous costal perichondrium was taken for transplantation. After 8-24 weeks, surviving animals were sacrificed to observe the repair effects. RESULTS AND CONCLUSION：General observation showed that animals breathed and ate normaly, the implanted cartilage bonded tightly with the surrounding tissue, the wound healed wel without granulation tissue and scar formation, and there was a smooth inner surface covered by mucosa in the lumen. Under the light microscope, there was some mucosa generating at the wound site, and some fibroblasts and striated muscle cels existed in the outer layer, with a smal amount of new cartilage formation. There was also a linking between chondrocytes and muscle cels. These findings indicate that autologous cartilage transplantation can be applied for laryngotracheal reconstruction in animals, which has a good effect.
出处
《中国组织工程研究》
CAS
北大核心
2015年第20期3168-3172,共5页
Chinese Journal of Tissue Engineering Research
基金
国家自然科学基金资助项目(30772261)~~
