The examples of using X radiography and X ray diffraction methods.
射线照相法及X射线结构分析的应用实例；
Plain radiography: All patients should have an AP and a lateral X Ray of the affected hip. Evaluation of serial x-rays is more informative than a single image in assessing signs of loosening.
线片：所有病例的患髋均应摄前后位和侧位X线片，判定松动征兆，评估一系列的X线片比单一图片信息量大。
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