Department of Emergency Medicine, Madigan Army Medical Center, Tacoma, WA 98431, USA.
Simul Healthc. 2009 Winter;4(4):228-31. doi: 10.1097/SIH.0b013e3181b1a8d0.
Ultrasound is emerging as a promising tool for the diagnosis of skeletal fractures, particularly in environments where conventional radiography may be absent or limited. This article presents a high-fidelity, practical simulation model for the ultrasound diagnosis of long-bone fractures and also examines the ability of physicians to diagnose the presence or absence of different fracture patterns using this model.
The bony component of the model is a bare turkey leg bone that is mechanically fractured and housed in a shallow plastic container within a gelatin-based solution. Twenty physicians sonographically evaluated five models with different fracture patterns for the presence or absence of a fracture and were then queried regarding their opinion of this model as a teaching tool.
Physicians were able to correctly identify the presence or absence of a fractured model with 100% sensitivity and 100% specificity across all fracture patterns and expressed agreement that this would be a useful teaching model.
This high-fidelity, practical model is simple to construct, and the creation of a variety of fracture patterns is possible. Physicians found this to be a potentially useful teaching tool and correctly identified the presence or absence of different simulated fractures. Further studies may validate this simulation model as a teaching tool in the sonographic assessment of long bones for the presence of fractures and examine the potential clinical impact of this trainer.
超声技术在骨骼骨折的诊断中具有广阔的应用前景，尤其是在传统 X 光摄影可能缺失或受限的环境中。本文介绍了一种高保真、实用的长骨骨折超声诊断模拟模型，并评估了医生使用该模型诊断不同骨折模式的能力。
模型的骨骼部分是一根去骨火鸡腿，通过机械方式使其骨折，并放置在浅塑料容器中，容器中装有明胶基溶液。20 名医生对具有不同骨折模式的 5 个模型进行超声评估，以确定是否存在骨折，并对该模型作为教学工具的看法进行了问卷调查。
在所有骨折模式下，医生都能以 100%的灵敏度和 100%的特异性正确识别出骨折模型的存在或缺失，并表示该模型将是一种有用的教学模型。
该高保真、实用的模型易于构建，且可创建多种骨折模式。医生认为这是一种潜在有用的教学工具，可以正确识别不同模拟骨折的存在或缺失。进一步的研究可能会验证该模拟模型作为超声评估长骨骨折的教学工具的有效性，并探讨该训练器的潜在临床影响。
