Wellisz T
Division of Plastic Surgery, University of Southern California, Los Angeles.
Plast Reconstr Surg. 1993 Apr;91(5):811-8. doi: 10.1097/00006534-199304001-00009.
This paper describes a new technique using a Medpor porous polyethylene pivoting helix framework for reconstruction of the burned auricle. The polyethylene framework is composed of two distinct components, a curved shape that represents the helical rim which pivots around a base component. This framework is covered with a temporoparietal fascia flap and a skin graft that is chosen to match the adjacent resurfaced facial burn. The porous framework then becomes rapidly vascularized with soft-tissue ingrowth and collagen deposition. The pivoting helix design can be used to create an auricle of almost any size or projection. The helix can move independently and can be compressed against the head in the event of external pressure on the ear. The resultant ear reconstruction is extremely durable and remains flexible over time. Twenty-six consecutive ear reconstructions were performed using this method over a 2-year period. Two exposures occurred which were managed without removal of the implant. All reconstructions successfully restored an ear that was both aesthetically pleasing and functional so as to provide support for a pair of eyeglasses. The Medpor porous polyethylene pivoting helix framework offers an excellent solution for a difficult reconstructive problem.
本文介绍了一种使用Medpor多孔聚乙烯枢转螺旋框架重建烧伤耳廓的新技术。聚乙烯框架由两个不同的部分组成,一个弯曲形状代表围绕基部组件枢转的螺旋边缘。该框架覆盖有颞顶筋膜瓣和选择与相邻面部烧伤创面匹配的皮肤移植片。多孔框架随后通过软组织长入和胶原沉积迅速血管化。枢转螺旋设计可用于创建几乎任何大小或突出度的耳廓。螺旋可独立移动,并且在耳朵受到外部压力时可压向头部。由此产生的耳部重建极其耐用,并且随着时间的推移仍保持柔韧性。在两年期间使用该方法连续进行了26次耳部重建。发生了两次外露,在未移除植入物的情况下进行了处理。所有重建均成功恢复了一只在美学上令人满意且功能良好的耳朵,可为一副眼镜提供支撑。Medpor多孔聚乙烯枢转螺旋框架为一个棘手的重建问题提供了出色的解决方案。