Nicoletti Giovanni, Tresoldi Marco Mario, Malovini Alberto, Visaggio Marco, Faga Angela, Scevola Silvia
Department of Clinical Surgical Diagnostic and Pediatric Sciences, Plastic and Reconstructive Surgery Unit, University of Pavia, Italy.
Advanced Technologies for Regenerative Medicine and Inductive Surgery Research Center, University of Pavia, Pavia, Italy.
Indian J Plast Surg. 2018 Jan-Apr;51(1):46-53. doi: 10.4103/ijps.IJPS_217_17.
Dermal substitutes are currently largely used for the treatment of huge skin loss in patients in critical general health conditions, for the treatment of severe burns and to promote the healing process in chronic wounds.
The authors performed a retrospective assessment of their experience with bioengineered skin to possibly identify the most appropriate clinical indication and management for each substitute.
The study involved 109 patients with 127 skin defects repaired with dermal substitutes over a 9 years period, from 2007 to 2016. Hyalomatrix was used in 63 defects, whereas Integra and Nevelia were used in 56 and 8 defects, respectively.
The statistical analysis failed to reveal a correlation between the choice of a specific dermal substitute and any possible clinical variable except in the soft-tissue defects of the scalp where Hyalomatrix was electively used.
In the authors' experience, the scalp defects followed a radical excision of skin tumours that included the periosteum. Here, the preliminary cover with a hyaluronan three-dimensional scaffold constantly allowed for the regeneration of a derma-like layer with a rich vascular network fit for supporting a split-thickness skin graft. Nevertheless, the authors still prefer Integra when the goal is a better cosmetic outcome and Hyalomatrix when a faster wound healing is required, especially in the management of deep wounds where the priority is a fast obliteration with a newly formed tissue with a rich blood supply. However, these clinical indications still are anecdotally based.
目前,皮肤替代物在很大程度上用于治疗一般健康状况危急的患者的大面积皮肤缺损、严重烧伤以及促进慢性伤口的愈合过程。
作者对他们使用生物工程皮肤的经验进行了回顾性评估,以确定每种替代物最合适的临床适应症和管理方法。
该研究纳入了109例患者,在2007年至2016年的9年期间,使用皮肤替代物修复了127处皮肤缺损。63处缺损使用了透明质酸基质,而分别有56处和8处缺损使用了Integra和Nevelia。
统计分析未能揭示特定皮肤替代物的选择与任何可能的临床变量之间的相关性,但在头皮软组织缺损中,选择性使用了透明质酸基质。
根据作者的经验,头皮缺损是在包括骨膜在内的皮肤肿瘤根治性切除之后出现的。在此,用透明质酸三维支架进行初步覆盖,始终能够再生出具有丰富血管网络的真皮样层,适合支撑中厚皮片移植。然而,当目标是获得更好的美容效果时,作者仍然更喜欢使用Integra;当需要更快的伤口愈合时,则更喜欢使用透明质酸基质,尤其是在处理深度伤口时,首要任务是用新形成的、血供丰富的组织快速填充伤口。然而,这些临床适应症仍然是基于个案的。