烧伤早期切痂脱细胞异体真皮基质与自体皮浆复合移植的临床应用

目的探讨脱细胞异体真皮基质与自体皮浆复合移植的可行性。方法在8例患者Ⅲ。烧伤创面早期切痂,13个部位采用18块脱细胞真皮基质移植固定,在异体皮的真皮面上均匀涂布备好的皮浆,覆盖于脱细胞真皮基质上,缝合包扎固定。同一肢体其余创面常规用自体皮浆加异体皮移植做对照观察,皮浆与创面比例为1：5～1：8。结果18块脱细胞异体真皮基质复合移植皮肤成活率94％,随访3～13个月皮肤弹性及色泽好、瘢痕轻、耐磨,愈合质量优于对照部位创面。术后3个月组织切片表皮真皮连接紧密,可见钉突样结构,胶原纤维排列较规整;单纯皮浆移植皮肤为瘢痕皮肤结构。结论应用脱细胞真皮基质与自体皮浆复合移植,明显优于单纯的皮浆移植,具有较好的临床应用前景。

The clinical application on composite graft of acellular allo-dermal matrix and auto-microskin on escharectomy after deep burns

OBJECTIVE: To present the clinical application of composite graft of acellular allo-dermis matrix (ADM) with thin auto-microskin on burn wound. METHODS: 8 inpatients with 18 full thickness skin burn wounds were transplanted with allo-ADM after eschar was excised, then the auto-microskin and allo-human skin were covered on the area of the matrix, the wound where no allo-ADM grafting were covered as control groups only with auto-microskin and allo-human skin. The area of donor to wound is 1:5 - 1:8. RESULTS: Survived rate of 18 pieces composite skin that allo-ADM with auto-microskin were grafted were 94%. After following up for 3 to 13 months, the skins of complex grifting had well elastic and smooth texture compared to auto-microskin grafted, they appeared less cicatrisation and ulceration. 3 months after operation, it was indicated by histological examination that tightknit the epithelial-dermal conjunction and epidermal papilla structure could be identified in the allo-ADM skin and there were orderly collagenous fibres, but scar skin structure was observed in that auto-microskin grifted area. CONCLUSION: The graft effectiveness of allo-ADM and auto-microskin was better than that of auto-microskin, and this method could be used on major deep burn wound healing.