Table 1.

Elementary lesions in foot osteoarthritis: final results of the Delphi survey

Elementary lesions in foot osteoarthritis	Agreement (%)
Midfoot joints must be assessed separately for structural and inflammatory abnormalities in foot OA	84.2
I MTP joint must be assessed separately for structural and inflammatory abnormalities in foot OA	100.0
Joint inflammation and structural changes must be assessed separately in foot OA	94.7
Joint synovial hypertrophy (with or without Doppler signal) should always be assessed in foot OA	100.0
Joint effusion should always be assessed in foot OA	89.5
Synovial hypertrophy can be scored semiquantitatively from 0 to 3 (ie, 0=no; 1=mild; 2=moderate; 3=severe)	84.2
Doppler can be scored semiquantitatively from 0 to 3 (ie, 0=no; 1=mild; 2=moderate; 3=severe)	89.5
Synovial hypertrophy can also be scored dichotomously (ie, 0=absent; 1=present)	78.9
Osteophytes should always be assessed for joint structural changes in foot OA	100.0
Cartilage damage of the first metatarsal head should always be assessed for joint structural changes in foot OA	78.9
II to V MTP joints must be assessed separately for structural and inflammatory abnormalities in foot OA	94.7

MTP, metatarsophalangeal; OA, osteoarthritis.