Table 1

Maximum grade of tibiofemoral joint space narrowing on PA view vs maximal and individual WORMS reading on 10 tibiofemoral subregions

Max TF JSN=0 on PA view (N=28)Max TF JSN≥1 on PA view (N=161)
WORMS cartilage morphology scoreWORMS cartilage morphology score
0122.534560122.53456
Maximum cartilage score of 10 subregions (%)8 (28.6)0 (0.00)5 (17.9)2 (7.1)10 (35.7)1 (3.6)2 (7.1)0 (0.00)11 (6.9)0 (0.00)12 (7.5)1 (0.6)64 (39.8)24 (14.9)46 (28.6)3 (1.9)
  • Framingham Osteoarthritis Study—limited to knees scored Kellgren and Lawrence grade 2.

  • JSN, joint space narrowing; PA, ; TF, tibiofemoral; WORMS, whole-organ magnetic resonance imaging score.