Fig. 4

Differing degrees of condylar destruction in patients of this study. a Bilateral normal appearance of condyles (Score 0) in a 7 years old girl with RF- polyarthritis and a disease duration of 2,5 years .b Bilateral cortical bony erosions (Score 1), more pronounced on the left side. 12 years old girl with an undifferentiated arthritis and a disease duration of 0,2 years. c Unilateral condylar flattening (Score 2) on the right side in a 19 years old female patient with psoriatic arthritis and a disease duration of 10,9 years. d Unilateral condylar flattening with additional erosions (Score 3) in a 13 years old girl with RF- polyarthritis and a disease duration of 0,2 years. e Bilateral complete loss of the condyle (Score 4) in a 16 years old female patient with RF- polyarthritis and a disease duration of 4,7 years