在早期阶段,AVN 在普通 X 光检查中可能不明显,但在 MRI 上可以看到(如上所述)。随着病情的发展,肱骨头塌陷并最终引发关节炎,X 光片可以清楚地看到这一点(见下图)。 第一阶段是肩部 X 射线正常,但 MRI 信号变化显示软骨下水肿。第二阶段是肩膀关节表面附近(软骨下...
3. I have no pain in hip, but my MRI shows AVN hip joint on right side, do I need treatment? See, AVN in early stages is usually painless. But if left untreated, there is progression of AVN, bone damage worsens and pain starts to appear which initially is intermittent (occurring at...
1.2.1 术前准备 记录Harris 髋关节评分(Harris hip score, HHS) 和疼痛视觉模拟评分(visual analogue scale, VAS),拍摄双髋正侧位X线片、CT、MRI。术前根据影像学资 料进行ARCO分期和JIC分型。将CT和MRI数据导入术前计划软件进行AVN CAGE...
由此可见,MRI在诊断早期股骨头缺血性坏死方面具有很大的敏感性,可以发现循环改变期的骨坏死,甚至一些患者临床症状很典型及MRI表现非常明确患者,在X线及CT都没有阳性发现。因此,MRI是一种有效的非创性的早期必不可少的常规诊断的检查手段,本报告中的所有病例最终全部靠MRI明确诊断。另外,通过MRI检查可以发现髋关节积液...
MRIAvascular necrosis of the femoral head is one of the most common skeletal complicationsamong renal allograft recipients complaining of hip pain. While bilateral avascularnecrosis is more frequent than the unilateral type, we report a case of unilateralavascular necrosis of the hip occurring post ...
Figure 1 Preoperative radiographs of the left hip avascular necrosis of the femoral head (Ficat Ⅱ) 图1 患者,女性,49 岁,正轴位X 射线平片示左侧股骨 头缺血性坏死(Ficat Ⅱ期) a: Normotopia b: Axial view Figure 2 Postoperative radiographs of the trabecular metal ...