烧伤后胫骨外露:皮瓣重建与真皮替代物对比
Exposed tibial bone after burns: Flap reconstruction versus dermal substitute.
作者信息
Verbelen Jozef, Hoeksema Henk, Pirayesh Ali, Van Landuyt Koenraad, Monstrey Stan
机构信息
Department of Plastic and Reconstructive Surgery - Burn Center Gent University Hospital, Gent, Belgium.
Plastic Surgery, Amsterdam, The Netherlands.
出版信息
Burns. 2016 Mar;42(2):e31-7. doi: 10.1016/j.burns.2015.08.013. Epub 2015 Sep 12.
A 44 years old male patient had suffered extensive 3rd degree burns on both legs, undergoing thorough surgical debridement, resulting in both tibias being exposed. Approximately 5 months after the incident he was referred to the Department of Plastic and Reconstructive Surgery of the University Hospital Gent, Belgium, to undergo flap reconstruction. Free flap surgery was performed twice on both lower legs but failed on all four occasions. In between flap surgery, a dermal substitute (Integra(®)) was applied, attempting to cover the exposed tibias with a layer of soft tissue, but also without success. In order to promote the development of granulation tissue over the exposed bone, small holes were drilled in both tibias with removal of the outer layer of the anterior cortex causing the bone to bleed and subsequently negative pressure wound therapy (NPWT) was applied. The limited granulation tissue resulting from this procedure was then covered with a dermal substitute (Glyaderm(®)), consisting of acellular human dermis with an average thickness of 0.25mm. This dermal substitute was combined with a NPWT-dressing, and then served as an extracellular matrix (ECM), guiding the distribution of granulation tissue over the remaining areas of exposed tibial bone. Four days after initial application of Glyaderm(®) combined with NPWT both tibias were almost completely covered with a thin coating of soft tissue. In order to increase the thickness of this soft tissue cover two additional layers of Glyaderm(®) were applied at intervals of approximately 1 week. One week after the last Glyaderm(®) application both wounds were autografted. The combination of an acellular dermal substitute (Glyaderm(®)) with negative pressure wound therapy and skin grafting proved to be an efficient technique to cover a wider area of exposed tibial bone in a patient who was not a candidate for free flap surgery. An overview is also provided of newer and simpler techniques for coverage of exposed bone that could question the universal plastic surgery paradigm that flap surgery is the only way to cover these defects.
一名44岁男性患者双腿遭受大面积三度烧伤,接受了彻底的外科清创术,导致双侧胫骨外露。事件发生约5个月后,他被转诊至比利时根特大学医院整形与重建外科,接受皮瓣重建手术。双侧小腿进行了两次游离皮瓣手术,但均失败。在皮瓣手术期间,应用了一种真皮替代物(Integra(®)),试图用一层软组织覆盖外露的胫骨,但也未成功。为了促进外露骨上肉芽组织的生长,在双侧胫骨上钻孔,去除前皮质外层使骨出血,随后应用负压伤口治疗(NPWT)。该操作产生的有限肉芽组织随后用一种真皮替代物(Glyaderm(®))覆盖,其由平均厚度为0.25mm的脱细胞人真皮组成。这种真皮替代物与NPWT敷料结合,然后作为细胞外基质(ECM),引导肉芽组织在剩余外露胫骨区域分布。首次应用Glyaderm(®)并结合NPWT四天后,双侧胫骨几乎完全被一层薄薄的软组织覆盖。为了增加这种软组织覆盖层的厚度,每隔约1周再应用两层Glyaderm(®)。最后一次应用Glyaderm(®)一周后,对两个伤口进行了自体植皮。脱细胞真皮替代物(Glyaderm(®))与负压伤口治疗及皮肤移植相结合,被证明是一种有效的技术,可用于覆盖一名不适合进行游离皮瓣手术患者的更广泛外露胫骨区域。本文还概述了用于覆盖外露骨的更新、更简单的技术,这些技术可能会对皮瓣手术是覆盖这些缺损的唯一方法这一普遍的整形外科学范式提出质疑。