Department of Otorhinolaryngology/Head and Neck Surgery, King Fahad Medical City, Riyadh, Saudi Arabia.
Department of Otorhinolaryngology/Head and Neck Surgery, Prince Sultan Military City, Riyadh, Saudi Arabia.
Am J Rhinol Allergy. 2021 Mar;35(2):264-271. doi: 10.1177/1945892420952262. Epub 2020 Aug 20.
Cerebrospinal fluid leak (CSFL) repair simulation models are scarce; however, these models are valuable tools for skull base reconstruction surgery training.
This study aims to assess the face, content, and construct validity of a CSFL repair simulation model.
Eight novices (residents- PGY3) and eight experts have performed skull base reconstruction in multiple sites in twelve human cadaveric heads in simulated surgical environment. The experts completed a post-study 21-item questionnaire to assess the face and content validity. The performances of the participants were recorded and scored by two independent investigators who were blinded to the participant's level. Global Rating Scale of Operative Performance (GRSOP) and a Specific Skull Base Reconstruction Checklist (SBRC) were used to score the performances.
The responses from the expert group for the 21-item questionnaire were high for all items (4.13-4.88 out of 5). The internal consistency reliability of the questionnaire and the intraclass correlation, which was derived by Cronbach's Alpha, were 0.913 and 0.941 respectively. Differences in construct validity between the two groups were statistically significant for both the GRSOP and SBRS (P-value < 0.001).
We demonstrated the face, content, and construct validity of the CSFL repair simulation model, which facilitates the acquisition of technical skills necessary for skull base reconstruction surgery. The model includes realistic features that make it useful in educational courses.
脑脊液漏（CSFL）修复模拟模型稀缺；然而，这些模型是颅底重建手术培训的宝贵工具。
本研究旨在评估 CSFL 修复模拟模型的表面效度、内容效度和结构效度。
8 名新手（住院医师 3 级）和 8 名专家在模拟手术环境下的 12 个人体头颅标本中进行了多个部位的颅底重建。专家完成了一项 21 项的后测调查问卷，以评估表面效度和内容效度。参与者的表现由两位独立的观察者记录和评分，观察者对参与者的水平不知情。手术表现综合评分（GRSOP）和特定颅底重建检查表（SBRC）用于评分。
专家组对 21 项问卷的回答在所有项目中均为高分（5 分制中得分为 4.13-4.88）。问卷的内部一致性信度和 Cronbach's Alpha 得出的组内相关系数分别为 0.913 和 0.941。两组之间在 GRSOP 和 SBRS 上的结构效度差异具有统计学意义（P 值均<0.001）。
我们证明了 CSFL 修复模拟模型的表面效度、内容效度和结构效度，这有助于获得颅底重建手术所需的技术技能。该模型具有逼真的特点，使其在教育课程中非常有用。
