Boro Sumanjit S, Mathew Anil K, Kumar Anchit
Department of Burns and Plastic Surgery, All India Institute of Medical Science, Guwahati, Assam, India.
Department of Maxillofacial Surgery, Powai Hospital, Mumbai, Maharashtra, India.
Indian J Plast Surg. 2023 Apr 19;56(3):245-250. doi: 10.1055/s-0043-1768244. eCollection 2023 Jun.
Regular practice, quality clinical exposure, and academic discussion are essential in any surgical specialty training. This study discusses and validates the option of using a fresh "chicken quarter" model with a measurable scoring system, as a standard training regimen in microvascular surgery. This can be a very effective, economical, and easily accessible model for residents. This study was conducted in the Department of Plastic surgery, from October 2020 to May 2021. Twenty-four fresh "chicken quarter" specimens were dissected and the ischial arteries and femoral veins' external diameter (ED) were measured. The microsurgical skills of the trainee were assessed in 6 months intervals using the Objective Structured Assessment of Technical Skills Scale (OSATS) as well as the time taken for anastomosis. All the data were analyzed using SPSS (statistical package for social sciences) version 21. A task-specific score value of 50% on October 2020 improved to 85.7% by May 2021. This was found to be statistically significant ( = 0.043). The mean ED of the ischial artery and femoral vein was 2.07 and 2.26 mm, respectively. The mean width of the vein measured at the lower one-third of the tibia was 2.08 mm. A greater than 50% reduction in anastomosis time was observed after a period of 6 months. In our minimal experience, the "chicken quarter model" with OSATS scoring system seems to be effective, economical, very affordable, and easily accessible microsurgery training model for the residents. Our study is done only as a pilot project due to limited resources and we have the plan to introduce it as a proper training method in the near future with more residents.
在任何外科专业培训中，定期练习、高质量的临床接触和学术讨论都是必不可少的。本研究讨论并验证了使用带有可测量评分系统的新鲜“鸡大腿”模型作为微血管手术标准训练方案的可行性。对于住院医师来说，这可能是一个非常有效、经济且易于获取的模型。
本研究于2020年10月至2021年5月在整形外科进行。解剖了24个新鲜的“鸡大腿”标本，并测量了坐骨动脉和股静脉的外径（ED）。每隔6个月使用客观结构化技术技能评估量表（OSATS）以及吻合所需时间来评估学员的显微外科技能。所有数据均使用社会科学统计软件包（SPSS）21版进行分析。
2020年10月特定任务的得分值为50%，到2021年5月提高到了85.7%。发现这具有统计学意义（P = 0.043）。坐骨动脉和股静脉的平均外径分别为2.07毫米和2.26毫米。在6个月的时间段后，观察到吻合时间减少了50%以上。
根据我们有限的经验，带有OSATS评分系统的“鸡大腿模型”似乎是一种对住院医师有效、经济、价格实惠且易于获取的显微外科训练模型。由于资源有限，我们的研究仅作为一个试点项目完成，并且我们计划在不久的将来将其作为一种合适的训练方法引入，纳入更多的住院医师。
