Williamson Julie A, Brisson Brigitte A, Anderson Stacy L, Farrell Robin M, Spangler Dawn
Lincoln Memorial University College of Veterinary Medicine, Harrogate, Tennessee.
Department of Clinical Studies, University of Guelph Ontario Veterinary College, Guelph, Ontario, Canada.
Vet Surg. 2019 Aug;48(6):966-974. doi: 10.1111/vsu.13224. Epub 2019 May 8.
To compare a low-fidelity foam and fabric (FF) model to a high fidelity silicone (SI) model for teaching canine celiotomy closure.
Prospective blinded comparison of learning outcomes.
Second-year veterinary students who had never performed surgery as a primary surgeon (n = 46) and veterinarians experienced in performing canine celiotomy (n = 10).
Veterinary students performed a digitally recorded celiotomy closure on a canine cadaver before and after participation in 4 facilitated laboratory training sessions on their randomly assigned model. Recordings were scored by masked, trained educators with an 8-item task-specific rubric. Students completed surveys evaluating the models. Experienced veterinarians tested the models and provided feedback on their features.
Completed pretest and posttest recordings were available for 38 of 46 students. Students' performance improved regardless of the model used to practice (P = .04). The magnitude of improvement did not differ between the 2 groups (P = .10). All students (n = 46) described their models favorably. Ninety percent of veterinarians thought both models were helpful for training students and gave similar ratings on all measures except for realism, which was rated higher for the SI model's skin (median, agree) compared with the FF model (median, neutral, P = .02).
Model-based training was effective at improving students' surgical skills. Less experienced learners achieved similar skill gains after practicing with FF or SI models.
The acquisition of surgical skills required to perform celiotomy closure in companion animals occurs similarly well on models made of foam and fabric or of silicone, providing flexibility in model selection.
比较低逼真度的泡沫与织物（FF）模型和高逼真度的硅胶（SI）模型在犬类剖腹术闭合教学中的效果。
对学习成果进行前瞻性盲法比较。
从未作为主刀医生进行过手术的二年级兽医学生（n = 46）和有犬类剖腹术经验的兽医（n = 10）。
兽医学生在参与针对其随机分配模型的4次辅助实验室培训课程前后，在犬类尸体上进行数字化记录的剖腹术闭合操作。由经过培训的盲法评分人员使用包含8项特定任务的评分标准对记录进行评分。学生完成评估模型的调查问卷。经验丰富的兽医对模型进行测试并提供关于其特征的反馈。
46名学生中有38名完成了测试前和测试后的记录。无论使用哪种模型练习，学生的表现都有所提高（P = .04）。两组之间的提高幅度没有差异（P = .10）。所有学生（n = 46）都对他们的模型给予了好评。90%的兽医认为两种模型都有助于培训学生，并且在除逼真度之外的所有指标上给出了相似的评分，其中SI模型皮肤的逼真度评分高于FF模型（中位数，同意）（中位数，中立，P = .02）。
基于模型的培训在提高学生手术技能方面是有效的。经验较少的学习者在使用FF或SI模型练习后获得了相似的技能提升。
在伴侣动物中进行剖腹术闭合所需的手术技能，在由泡沫和织物或硅胶制成的模型上的获得情况相似，这为模型选择提供了灵活性。
