Department of Dermatology, Venereology and Allergology, Johann Wolfgang Goethe-University, Frankfurt am Main, Germany.
J Eur Acad Dermatol Venereol. 2015 Nov;29(11):2248-51. doi: 10.1111/jdv.12778. Epub 2014 Oct 22.
The plastic reconstruction of the ear after microscopically controlled tumor surgery is a particular challenge. The chondrocutaneous helix rim advancement flap (CHRAF) is perfectly suited for the repair of different defects of the helix and even defects beyond.
Here, we describe two known and two new modifications of the CHRAF that enlarge the scope of application in tumor surgery of the ear.
We demonstrate the different techniques and practical application of the repair and evaluate the benefits and limitations.
The CHRAF and its modifications is an excellent method for repair of various defects of the helical region of the ear.
The CHRAF and its modifications proves to be an good alternative to other methods of closure by preserving the anatomical contour and mechanical and acoustic functions in a single-staged procedure with excellent aesthetic results. The two new modifications we introduced here, enlarge the known armentarium for very large defects of the upper pole and the mid-helix of the ear.
显微镜控制下的肿瘤手术后耳朵的整形重建是一个特殊的挑战。耳软骨皮瓣推进旋转皮瓣（CHRAF）非常适合修复耳廓的不同缺陷，甚至是超过耳廓的缺陷。
在这里，我们描述了 CHRAF 的两种已知和两种新的改良方法，这些方法扩大了耳廓肿瘤手术的应用范围。
我们展示了修复的不同技术和实际应用，并评估了其优点和局限性。
CHRAF 及其改良方法是修复耳廓螺旋区域各种缺陷的极好方法。
CHRAF 及其改良方法通过在单一阶段手术中保持解剖轮廓以及机械和声学功能，同时获得极好的美学效果，被证明是其他闭合方法的良好替代方法。我们在这里介绍的两种新的改良方法，扩大了已知的用于修复上极和中耳廓非常大的缺陷的方法库。
