Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zürich.
University of Zürich, Zürich, Switzerland.
Otol Neurotol. 2018 Jul;39(6):e448-e452. doi: 10.1097/MAO.0000000000001839.
Evaluation of the face validity of a new artificial model of an infant temporal bone (TB) suitable for surgical training, including cochlear implantation.
Micro-computer-tomography images were obtained from a TB specimen of a 1-year-old normal infant available in an anatomical collection. The TB model was designed and constructed using these images and techniques known from similar models of adult TB.
Fifteen otology departments in Austria, Germany, and Switzerland rated the infant TB model and compared it with the established adult TB model manufactured commercially by the same company.
The otologists responded to a semi-quantitative questionnaire with a rating scale ranging from 1 (strongly disagree) to 5 (strongly agree). Macroscopic and microscopic anatomic details, drilling experience, and surgical landmarks were rated. The surgical procedures included mastoidectomy, posterior tympanotomy, cochleostomy, and insertion of a cochlear electrode.
Overall ratings were similar (3.9) for both the infant and the adult TB models, with ranges of 3.47 to 4.47 (infant model) and 3.5 to 4.33 (adult model). Ratings of specific anatomical details differed as a function of type of model, but without preference of one model over the other.
Infant TB models can be used similarly as adult TB models for surgical training, including cochlear implantation. They may deserve a more important role in surgical training because cadaveric human temporal bones of infants are not available.
评估一种新的婴儿颞骨（TB）人工模型的表面效度，该模型适用于包括耳蜗植入在内的手术培训。
从解剖标本库中获取了 1 岁正常婴儿的 TB 标本的微计算机断层扫描图像。该 TB 模型是使用这些图像和来自成人 TB 类似模型的已知技术设计和构建的。
奥地利、德国和瑞士的 15 个耳科部门对婴儿 TB 模型进行了评估，并将其与同一公司商业化生产的已建立的成人 TB 模型进行了比较。
耳科医生使用评分量表（1 分表示强烈不同意，5 分表示强烈同意）对婴儿 TB 模型进行了半定量问卷调查。评估了大体和微观解剖细节、钻孔经验和手术标志。手术程序包括乳突切除术、后鼓室切开术、耳蜗造口术和耳蜗电极插入。
婴儿和成人 TB 模型的总体评分相似（3.9），评分范围分别为 3.47 至 4.47（婴儿模型）和 3.5 至 4.33（成人模型）。特定解剖细节的评分因模型类型而异，但两种模型之间没有偏好。
婴儿 TB 模型可类似地用于手术培训，包括耳蜗植入，因为婴儿的尸体颞骨无法获得。
