Fig. 1From: The correlation between radiographic and pathologic grading of lumbar facet joint degenerationA 43 years old woman with L5-S1 lumbar disc herniation suffered posterior lumbar surgery. The left inferior articular process of L5 was examinated by hematoxylin and eosin (40×) (left) and toluidine blue (40×) (right) stain. The pathologic grading was 2. The CT grading, the MR grading and the CT combined MR grading were also 2Back to article page