Influence of the quality of tibial plateau alignment on the reproducibility of computer joint space measurement from Lyon schuss radiographic views of the knee in patients with knee osteoarthritis
Influence of the quality of tibial plateau alignment on the reproducibility of computer joint space measurement from Lyon schuss radiographic views of the knee in patients with knee osteoarthritis
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DOI：
10.1016/j.joca.2004.06.003
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发表时间：
2004-10-01
影响因子：
7
通讯作者：
Vignon, E
中科院分区：
文献类型：
--
作者：
Conrozier, T;Favret, H;Vignon, E
理由：内侧胫骨平台 (MT-Plateau) 对准的质量是膝关节骨关节炎 (OA) 膝关节 X 线摄影变化的准确性和敏感性的关键要素之一。目的：评估 MT-Plateau 对准质量对膝关节 X 线照片中关节间隙宽度 (JSW) 测量可重复性的影响。方法：使用标准化 X 线摄影程序拍摄 127 张膝部 X 光片 (99 OA) （Lyon schuss (LS) 视图）..MT-Plateau 对齐的质量评估。 .使用半自动和自动测量方法对 JSW 进行计算机化测量，两次，间隔 1 个月。重复测量的再现性评估：计算观察者内相关系数、最小可检测差异 (SDD) 和变异系数 (CV)。结果：99 张射线照片 (77.9%) 的 MT-Plateau 对齐效果令人满意。无论使用何种测量方法，满意和不满意的射线照片的再现性都非常出色。自动测量比半自动测量具有更高的可重复性（CV 1.15% 和 3.23%）。SDD 和 CV 的满意度优于 MT-Plateau 对齐射线照片。结论：这些结果证实，无论射线照片的质量如何，根据 LS 数字化射线照片对内侧胫骨股骨 JSW 进行计算机测量具有高度可重复性。然而，MT-Plateau 对齐的质量会影响 JSW 测量的再现性。自动测量比半自动测量更具可重复性。 (C) 2004 年国际骨关节炎研究协会。由爱思唯尔有限公司出版。保留所有权利。
Rationale: The quality of medial tibial plateau (MT-Plateau) alignment is one of the key elements for accuracy and sensitivity to change of knee radiography in knee osteoarthritis (OA).Aim: To evaluate the influence of the quality of the MT-Plateau alignment on the reproducibility of joint space width (JSW) measurement in knee radiographs.Methods: One hundred and twenty-seven knee radiographs (99 OA), performed using a standardized radiographic procedure (Lyon schuss (LS) view)..Evaluation of the quality of MT-Plateau alignment. .Computerized measurement of the JSW, twice, 1-month apart, using a semi-automated and an automated method of measurement. .Assessment of the reproducibility of repeated measurements: calculation of intra-observer coefficient of correlation, smallest detectable difference (SDD) and coefficient of variation (CV).Results: MT-Plateau alignment was satisfactory in 99 radiographs (77.9%).Reproducibility was excellent in both satisfactory and non-satisfactory radiographs, irrespective of the method of measurement used. The automated measurement was more reproducible than the semi-automated one (CV 1.15% and 3.23%).SDD and CV were better in satisfactory than in non-satisfactory MT-Plateau aligned radiographs.Conclusion: These results confirm that computer measurement of the medial tibio-femoral JSW, from LS digitized radiographs, is highly reproducible, irrespective of the quality of the radiograph. However, the quality of the MT-Plateau alignment influences the reproducibility of JSW measurement. The automated measurement was more reproducible than the semi-automated one. (C) 2004 OsteoArthritis Research Society International. Published by Elsevier Ltd. All rights reserved.