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. 2013 Mar 1;9:42. doi: 10.1186/1746-6148-9-42

Table 3.

Details of the radiographic scoring scheme

a) For each of 11 different sites, the size of osteophytes was measured in millimetres and a score was assigned:
0
Absence of osteophytes
 
 
 
1
Osteophytes smaller than 2 mm
 
 
 
2
Osteophytes between 2 and 5 mm
 
 
 
3
Osteophytes greater than 5 mm
 
 
 
b)The osteophyte score for each site was totaled and then converted to a final score of 1-3
From 0 to 10
Mild
1
 
 
> 10 to 20
Moderate
2
 
 
> 20
Severe
3
 
 
c) The final osteophyte score, bone opacity score, joint effusion score and global score were summed to give the overall score (maximum possible 12)
Parameter
Absent
Mild
Moderate
Severe
Osteophytes
0
1
2
3
↑ Bone opacity
0
1
2
3
Joint effusion
0
1
2
3
Global score
0
1
2
3
        Total maximum score 12