Observational Study
Copyright ©2014 Baishideng Publishing Group Inc.
World J Radiol. Nov 28, 2014; 6(11): 881-885
Published online Nov 28, 2014. doi: 10.4329/wjr.v6.i11.881
Figure 1
Figure 1 (A-D) Grading system of facet joint osteoarthritis in T2-weighted imaging according to Weishaupt et al[5]. Grade 0: Homogenous cartilage and normal (2-4 mm) joint space width; Grade I: Narrowing of the joint space and small osteophytes; Grade II: Narrowing of the joint space, moderate osteophytes and/or subchondral erosions; Grade III: Narrowing of the joint space, large osteophytes and subchondral erosion/cysts.