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Fig. 1 | BMC Musculoskeletal Disorders

Fig. 1

From: Expression of adiponectin in the subchondral bone of lumbar facet joints with different degrees of degeneration

Fig. 1

The Weishaupt grade of CT and MRI images of the lumbar facet joint: Grade 0, normal facet joint space (2–4 mm width); Grade 1, narrowing of the facet joint space (<2 mm) and/or small osteophytes, and/or mild hypertrophy of the articular process; Grade 2, narrowing of the facet joint space and/or moderate osteophytes, and/or moderate hypertrophy of the articular process, and/or mild subarticular bone erosions; and Grade 3, narrowing of the facet joint space and/or large osteophytes, and/or severe hypertrophy of the articular process, and/or severe subarticular bone erosions, and/or subchondral cysts

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