膝关节退行性骨关节病的X线及MRI分级的临床价值

Clinical value of X-ray and MRI classification of degenerative Osteoarthropathy of the knee

目的:探讨膝关节退行性骨关节病(DO Degenerative Osteoarthropathy)的X线及MRI分级的诊断价值。方法:通过对17例因DO而行关节置换术患者DO的病理分级与X线及MRI分级进行研究,分析膝关节DO的X线及MRI分级的诊断价值。结果:X线与MRI分级及病理分级一致性较差(κ值≤0.40);MRI分级与病理分级有较高度的一致性(0.60<κ≤0.80)。当按轻度、中度、重度分级时,MRI分级与病理分级有几乎完全一致(κ>0.80);当按轻度、重度分级时,MRI分级分别与病理分级均呈较高的一致(0.60<κ≤0.80)。结论:X线检查是膝关节DO最常见的检查方法,但是如果对膝关节DO的进行分级评估时最好选用MR检查,特别是术前评估更应该通过MR检查了解关节退变程度及其周围情况。

Objectives（1）To study the diagnostic value of X-ray and MRI classification of the knee DO Methods To analyze the diagnostic value of X-ray and MRI grading in 17 patients with DO of knee underwent knee replacement. Results X-ray grading and MRI、pathological grading are poor consistency（κ≤0.40）; MRI classification and pathological grading are preferable consistent（0.60〈κ≤0.80）. When it is a classification including mild, moderate and severe, MRI grading and histological grade were almost identical（κ〉0.80）; as is a classification including mild and severe, MRI grading and the pathologic grading showed preferable consistency（0.60〈κ≤0.80）.Conclusion X-ray is the most common method of the knee DO, but MR is the best of method for grading of knee DO, especially the preoperative preparation, it is should assess that understand joint degeneration and their surroundings by the MRI.