Lumbar Facet Joint Arthritis Is Associated with More Coronal Orientation of the Facet Joints at the Upper Lumbar Spine

<table>Grading scale for FJ arthritis. Grade 0 = normal FJ. Grade 1 (mild) = joint space narrowing, grade 2 (moderate) = sclerosis, and grade 3 (severe) = osteophytes.</table>

Radiology Research and Practice

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Figure 1

Figure 1: Lumbar Facet Joint Arthritis Is Associated with More Coronal Orientation of the Facet Joints at the Upper Lumbar Spine 