异种(猪)脱细胞真皮与自体表皮复合移植研究

目的 为深度烧伤、瘢痕切除控制瘢痕增生与组织凹陷等寻求良好、廉价的覆盖与充填材料。方法 健康的白色小猪，活杀后剥其皮肤，用固定剂对异种（猪）皮肤细胞外基质固定交联，盐水法去除表皮，保留基底膜，用酶化学剂去除异种（猎）皮肤细胞，使其失去抗原性，保留完整的基底膜和细胞外基质的形态，制成网状异种（猪）脱细胞真皮支架。结果 对２３例病人进行异种（猪）脱细胞真皮支架移植７ｄ左右，再植自体刃厚大张皮的二步法复

The application of meshed acellular dermis xenograft (pigskin) with split thickness skin autograft in 23 patients

OBJECTIVE: An effective and inexpensive coverage, which can prevent scar formation and fill up scar tissue depression for full thickness skin burns in 23 patients was presented. METHODS: A deepithelized and acellular basement membranes of dermis from freshly harvested pigskin was obtained as meshed acellular dermis xenograft. The patients were treated in one or two stages. Two stages, 7 day postoperative the meshed acellular xenograft, a split thickness skin autograft was applied. One stage, the meshed acellular xenograft and split thickness skin autograft were applied at same time. RESULTS: The take rate of two staged treatment was (87.0 +/- 25.4)% and one stage was (60.3 +/- 3.4)%. All grafts showed in pink or near normal skin color and felt soft and smooth. CONCLUSIONS: The combination of meshed acellular dermis xenograft and split thickness skin autograft demonstrated an ideal way for the coverage of full thickness skin burn, which is effective and inexpensive.