Montanari Eliana, Schwameis Richard, Veit-Rubin Nikolaus, Kuessel Lorenz, Husslein Heinrich
Department of Gynecology and Obstetrics, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
J Clin Med. 2020 May 10;9(5):1408. doi: 10.3390/jcm9051408.
Reduced depth perception due to two-dimensional (2D) visualization of a three-dimensional (3D) space represents a main challenge in acquiring basic laparoscopic skills (BLS); 3D visualization might increase training efficiency. This study aimed to assess whether BLS training on a standard box trainer using 2D is at least equally effective compared to 3D. Medical students were randomized to training of Fundamentals of Laparoscopic Surgery (FLS) tasks using either 2D or 3D for four weeks. Baseline and post-training tests were performed using the assigned visualization modality. Data of 31 participants were analyzed ( = 16 2D, = 15 3D). Baseline test scores did not differ significantly between groups; only at the peg transfer task and total scores, the 3D group performed better than the 2D group. All scores improved significantly in both groups, with post training scores not differing significantly between groups. Non-inferiority of 2D compared to 3D was demonstrated for total score improvement and improvement in all individual FLS tasks except for suturing with extracorporeal knot tying. Post training test performance did not change significantly when changing to the unfamiliar modality. In conclusion, BLS training using standard 2D is at least equally effective as with 3D, without significant disadvantages when changing to the other modality.
由于三维（3D）空间的二维（2D）可视化导致深度感知降低，这是获取基本腹腔镜技能（BLS）的主要挑战；3D可视化可能会提高训练效率。本研究旨在评估在标准箱式训练器上使用2D进行BLS训练与使用3D相比是否至少同样有效。医学生被随机分为两组，分别使用2D或3D进行四周的腹腔镜手术基础（FLS）任务训练。使用指定的可视化方式进行基线测试和训练后测试。分析了31名参与者的数据（2D组 = 16人，3D组 = 15人）。两组之间的基线测试分数没有显著差异；仅在移栓任务和总分方面，3D组的表现优于2D组。两组的所有分数均显著提高，训练后两组分数无显著差异。除体外打结缝合外，在总分提高和所有个体FLS任务的提高方面，证明2D与3D相比具有非劣效性。当转换为不熟悉的方式时，训练后测试表现没有显著变化。总之，使用标准2D进行BLS训练至少与使用3D同样有效，转换到另一种方式时没有明显劣势。
