Hull York Medical School, York.
Birmingham Women's and Children's Hospital NHS Trust, Birmingham, United Kingdom.
J Craniofac Surg. 2022;33(2):602-606. doi: 10.1097/SCS.0000000000008130.
Ear reconstruction is 1 of the most technically challenging sub-specialties of craniofacial and reconstructive plastic surgery. The reconstructive ear must not only fulfil the requirement of being aesthetically pleasing but must also have good vascularity with a low complication rate. Several ear reconstructive techniques have been developed such as the autologous ear reconstruction technique using costal cartilage and ear reconstruction with high-density porous polyethylene or Medpor (Porex Surgical, Inc, College Park, GA). Autologous ear reconstructive techniques have advantages of durability and low infection rates however are associated with poorer aesthetic outcomes such as poor projection of the ear. Medpor has advantages of a more consistent three-dimensional definition without the need to harvest costochondral cartilage and create a donor site. However, due to its alloplastic material properties, Medpor has historically been reported as having a higher rate of extrusion and infection. This is the first systematic review to compare the outcomes of both techniques. The 6 studies that were reviewed were analyzed against 3 evaluative criteria: aesthetic outcome, complication rate, and convenience of intervention. This is so a comprehensive, evidence-based decision can be made by the surgeon and patient when ear reconstruction is required. The results showed heterogeneity in data and a lack of detailed descriptions of the assessment for aesthetic outcomes and convenience, hence were inconclusive. The results however showed that there were more complications with Medpor framework with 15% of total cases resulting in either extrusion or infection compared to 2% of autologous ear reconstruction framework.
耳再造是颅面和重建整形外科中最具技术挑战性的亚专业之一。重建的耳朵不仅必须具有美学上的吸引力,而且还必须具有良好的血液供应和低并发症率。已经开发了几种耳重建技术,例如使用肋软骨的自体耳重建技术和使用高密度多孔聚乙烯或 Medpor(Porex Surgical,Inc.,College Park,GA)的耳重建技术。自体耳重建技术具有耐用性和低感染率的优势,但是与较差的美学效果相关,例如耳朵的投影不佳。Medpor 的优点是更一致的三维定义,无需采集肋软骨并创建供体部位。然而,由于其同种异体材料特性,Medpor 历史上报告的挤出和感染率较高。这是首次对这两种技术的结果进行比较的系统评价。对 6 项综述研究进行了分析,以评估 3 项评估标准:美学效果,并发症发生率和干预的便利性。这样,在需要进行耳重建时,外科医生和患者可以做出全面,基于证据的决定。结果表明数据存在异质性,并且缺乏对美学效果和便利性评估的详细描述,因此没有定论。但是,结果表明 Medpor 框架的并发症更多,总病例中有 15%的病例发生挤出或感染,而自体耳重建框架的比例为 2%。