非诱导脂肪干细胞膜片复合PRF修复兔髁状突软骨缺损

Progress in Modern Biomedicine(2015)

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Abstract
目的:探索非诱导ADSCs膜片/PRF复合植入物修复兔子下颌骨髁状突软骨缺损的可行性及效果.方法:选取36只3月龄新西兰雄性大白兔,随机分为3个组即ADSCs膜片/PRF组、PRF组、空白对照组,在3%戊巴比妥钠麻醉下解剖暴露出髁状突关节面并用裂钻分别在双侧髁状突软骨面上制备一3 mm直径、3mm深的髁突表面软骨缺损区,按实验设计每个分组分别填入相应的植入物.分别在术后4周、8周、12周处死相应时间点的动物采集髁突标本,标本进行大体及组织学检查比较.结果:术后12周时空白对照组的下颌髁状突软骨缺损未能修复,PRF组有少量不规则、不连续的软骨形成,ADSCs膜片/PRF组的修复效果较好,表面软骨接近正常纤维软骨,与周围软骨连续性较好.组织学染色也显示ADSCs膜片/PRF组优于PRF组和空白对照组.结论:证明了ADSCs膜片/PRF复合物修复髁状突软骨缺损的可行性.
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Key words
Articular cartilage,Defect,Adipose derived stem cells,Platelet rich fibrin,Condyle
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