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首页> 外文期刊>Osteoarthritis and cartilage >Measurement of the radiological hip joint space width. An evaluation of various methods of measurement.
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Measurement of the radiological hip joint space width. An evaluation of various methods of measurement.

机译：放射髋关节间隙宽度的测量。对各种测量方法的评估。

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OBJECTIVE: To determine the most relevant method of measurement of the radiographic hip joint space width (JSW). DESIGN: Seventy hips were examined from 36 patients of the ECHODIAH study having had one to four X-rays of the pelvis during the 3-year course of the study. Minimum interbone distance (MIDc), mean width of both the whole joint space (MJSWL) and a region of interest of the joint space (MJSWroi) were measured using computerized analysis of digitized radiographs. MID was also measured using a graduated eyepiece (MIDge). Reproducibility of the measurement was assessed by the intraclass coefficient of correlation. Sensitivity to change was evaluated by the standardized response mean. RESULTS: The intraobserver intraclass coefficient of correlation of MIDc and MJSWroi was 0.98 and 0.94, respectively. The mean value degrees S.D. of MJSWL, MJSWroi, MIDc and MIDge was 3.3 degrees 0.9, 2.6 degrees 0.9, 2.4 degrees 0.9 and 2.6 degrees 1.2 mm, respectively. MIDge was significantly larger than MIDc (mean difference: 0.21 degrees 0.62 mm, P<0.001), in both normal and osteoarthritic hips. However, the difference between MIDge and MIDc varied largely when considering topography of femoral head migration. Whatever the method was, a significant (P<0.001) mean decrease of nearly 0.5 mm was found in osteoarthritic hips over the 3 year follow-up. The standardized response mean for MJSWL, MJSWroi, MIDge and MIDc was 0.73, 0.75, 0.79 and 0.85, respectively. Superiority of MIDc, in term of sensitivity to change, was mainly seen in osteoarthritic hips showing a superomedial or a concentric migration of the femoral head. CONCLUSION: Minimum interbone distance measured with a computer assisted method is suggested as the most suitable method for the evaluation of hip osteoarthritis (OA) progression.
机译：目的：确定最相关的放射摄影髋关节间隙宽度（JSW）的测量方法。设计：从ECHODIAH研究的36位患者中检查了70个髋关节，在研究的3年过程中，他们对骨盆进行了1-4次X射线检查。使用数字化X射线照片的计算机分析来测量最小骨间距离（MIDc），整个关节间隙的平均宽度（MJSWL）和关节间隙的关注区域（MJSWroi）。还使用带刻度的目镜（MIDge）测量了MID。通过类内相关系数评估测量的可重复性。通过标准化响应平均值评估对变化的敏感性。结果：MIDc和MJSWroi的观察者内部类内相关系数分别为0.98和0.94。平均值度S.D. MJSWL，MJSWroi，MIDc和MIDge的角分别为3.3度0.9、2.6度0.9、2.4度0.9和2.6度1.2 mm。在正常和骨关节炎髋关节中，MIDge均显着大于MIDc（平均差异：0.21度0.62 mm，P <0.001）。但是，考虑股骨头迁移的地形时，MIDge和MIDc之间的差异差异很大。无论采用哪种方法，在3年的随访中，骨关节炎的髋关节均显着降低（P <0.001），平均降低近0.5 mm。 MJSWL，MJSWroi，MIDge和MIDc的标准响应均值分别为0.73、0.75、0.79和0.85。在对变化的敏感性方面，MIDc的优势主要体现在骨关节炎的髋关节，显示股骨头顶上或同心移动。结论：建议采用计算机辅助方法测量的最小骨间距离是评估髋骨关节炎（OA）进展的最合适方法。

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