Kumar Panamoottil G Anil, Kirmani Sayyied J, Humberg Heike, Kavarthapu Venu, Li Patrick
Kings College Hospital, London, England, United Kingdom.
Orthopedics. 2009 Nov;32(11):815. doi: 10.3928/01477447-20090922-08.
The reproducibility and accuracy of a digital software templating program on digital images was examined for primary uncemented total hip arthroplasty (THA). Forty-five patients waiting for an uncemented THA had templating performed of their digital picture archiving and communication systems (PACS) pelvic images with the TraumaCad software program (Orthocrat Ltd, Petach-Tikva, Israel). Acetabular cup size, femoral stem size, and femoral offset were noted by 2 observers, and again by 1 of the observers a week later. Through correlation coefficients and significance testing, the degree of intraobserver and interobserver variability was evaluated, as well as the level of accuracy for digital templating. Excellent correlation was found for all data sets, with no significant difference between them in intraobserver reproducibility. Also in terms of interobserver reproducibility, we found good levels of correlation, with no significant difference between the data sets. In terms of accuracy, the correlation was at least acceptable with no significant difference between any of the data sets. The use of the TraumaCad digital software program provides a reliable method of templating digital images for uncemented THAs. There is little intraobserver and interobserver variability, and the method produces an acceptable level of accuracy.
对用于初次非骨水泥型全髋关节置换术（THA）的数字软件模板程序在数字图像上的可重复性和准确性进行了研究。45名等待非骨水泥型THA的患者使用TraumaCad软件程序（以色列佩塔提克瓦市Orthocrat有限公司）对其数字图像存档和通信系统（PACS）骨盆图像进行了模板制作。两名观察者记录髋臼杯尺寸、股骨干尺寸和股骨偏移量，一周后其中一名观察者再次记录。通过相关系数和显著性检验，评估了观察者内和观察者间的变异程度以及数字模板制作的准确性水平。所有数据集均发现具有良好的相关性，观察者内可重复性在各数据集之间无显著差异。在观察者间可重复性方面，我们也发现了良好的相关性水平，各数据集之间无显著差异。在准确性方面，相关性至少是可接受的，各数据集之间无显著差异。使用TraumaCad数字软件程序为非骨水泥型THA提供了一种可靠的数字图像模板制作方法。观察者内和观察者间的变异很小，且该方法产生了可接受的准确性水平。
