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Table 2 MRI and radiographic features at baseline

From: Structural predictors of response to intra-articular steroid injection in symptomatic knee osteoarthritis

Maximal score MRI features (WORMS) Radiographic features
BML (n) Menisci (n) Effusion (n) Synovitis (n) Cartilage (n) Osteophyte (n) Attrition (n) KLa (n) JSNa (n)
0 5 35 22 0 5 0 3 0 3
1 30 0 46 2 5 1 19 0 59
2 26 9 32 18 9 10 49 69 90
2.5 - - - - 10 - - - -
3 48 24 9 89 8 19 38 101 35
4   41    26 25   18  
5   0    36 16    
6   0    10 33    
7       5    
  1. MRI magnetic resonance imaging, WORMS Whole organ magnetic resonance imaging score, BML bone marrow lesion, KL Kellgren-Lawrence, JSN joint space narrowing. WORMS range of scores differs for each feature. aMaximal score in any region; 188 participants with available images for KL grading and 187 for JSN scoring