Abstract：
Background: The aim of this study was to determine the feasibility of the chicken foot model for surgical trainees interested in practising the designing, harvesting and inset of locoregional flaps of the hand. Methods: A descriptive study was performed to demonstrate the technical aspects of harvesting four locoregional flaps in a chicken foot model: fingertip volar V-Y advancement flap, four-flap and five-flap Z-plasty, cross-finger flap and first dorsal metacarpal artery (FDMA) flap. The study was performed in a surgical training laboratory on non-live chicken feet. No participants were involved in this study, apart from authors performing the descriptive techniques. Results: All flaps were successfully performed. Anatomical landmarks, soft tissue texture and flap harvest, as well as inset closely resembled clinical experience with patients. Maximal flap sizes were 12 × 9 mm for volar V-Y advancement, 5 mm limbs for Z-plasties, 22 × 15 mm for cross-finger flaps and 22 × 12 mm for FDMA flaps. The maximal webspace deepening with four-flap/five-flap Z-plasty was 20 mm and the FDMA pedicle length and diameter was 25 and 1 mm, respectively. Conclusions: Chicken feet can be effectively used as simulation models for hand surgical training with respect to gaining familiarity with the use of locoregional flaps of the hand. Further research requires testing for reliability and validity of the model on junior trainees.
摘要：
背景：本研究的目的是为有兴趣进行设计的外科学员确定鸡脚模型的可行性，手局部皮瓣的收获和嵌入。方法：进行了描述性研究，以证明在鸡脚模型中收获四个局部皮瓣的技术方面：指尖掌侧V-Y推进皮瓣，四瓣和五瓣Z形成形术,交叉指皮瓣和第一掌背动脉（FDMA）皮瓣。该研究是在非活鸡爪的外科培训实验室中进行的。没有参与者参与这项研究，除了执行描述性技术的作者。结果：所有皮瓣均成功完成。解剖标志,软组织纹理和皮瓣收获，以及插图与患者的临床经验非常相似。掌侧V-Y推进的最大皮瓣尺寸为12×9毫米，Z型塑料的5毫米肢体，交叉指瓣为22×15mm，FDMA瓣为22×12mm。四瓣/五瓣Z形成形术的最大网状空间加深为20mm，FDMA椎弓根长度和直径为25和1mm。分别。结论：在熟悉手部局部皮瓣的使用方面，可以有效地将鸡脚用作手外科训练的模拟模型。进一步的研究需要对初级学员进行模型的信度和效度测试。
