All authors are affiliated with the Department of Dermatology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, Ohio.
Dermatol Surg. 2020 Jan;46(1):9-19. doi: 10.1097/DSS.0000000000002011.
The large number of transposition flap geometries available for cutaneous reconstruction often makes the design of these flaps difficult for less experienced dermatologic surgeons.
To present a conceptual approach to designing transposition flaps based on 2 elementary angles.
First, a simplified framework for designing transposition flaps is presented, based on: (1) the takeoff point of the flap, (2) the angle between the primary limb and the primary defect (Angle A), and (3) the angle between the secondary limb and the primary limb (Angle B). Next, a comprehensive literature review highlights applications of the above conceptual approach in the design of z-plasties and single-lobed and multi-lobed transposition flaps.
Different types of transposition flaps all share the same key design elements, and modifications to Angle A and Angle B predict flap biomechanics.
The design of transposition flaps can be simplified by understanding how 2 elementary angles influence the geometry and biomechanics of various transposition flaps.
用于皮肤重建的转位皮瓣几何形状众多，这使得经验较少的皮肤科医生很难设计这些皮瓣。
基于 2 个基本角度，提出一种设计转位皮瓣的概念方法。
首先，基于以下几点提出了设计转位皮瓣的简化框架：（1）皮瓣的起飞点，（2）主支与原发缺损之间的角度（A 角），以及（3）次支与主支之间的角度（B 角）。接下来，对文献进行全面回顾，重点介绍了上述概念方法在 Z 成形术和单叶及多叶转位皮瓣设计中的应用。
不同类型的转位皮瓣都具有相同的关键设计要素，对 A 角和 B 角的修改可以预测皮瓣的生物力学。
通过了解 2 个基本角度如何影响各种转位皮瓣的几何形状和生物力学，可以简化转位皮瓣的设计。
