Research Article
Relationship between Endplate Defects, Modic Change, Disc Degeneration, and Facet Joint Degeneration in Patients with Low Back Pain
Figure 2
Evaluation of facet tropism and facet orientation. The facet joint angles relative to the sagittal plane were αL and αR. (a) Facet joint tropism = . (b) Facet joint orientation = (αL +αR)/2.