Fig. 4.

Abnormal bone remodeling at the hip joint as demonstrated on an anteroposterior pelvic radiograph in three adolescents with juvenile idiopathic arthritis. These changes were noted and commented upon during the scoring process as present or absent, although their severity was not allocated a score. a Radiograph in an 18-year-old woman shows protrusio acetabulae (arrow). b Radiograph in a 13-year-old girl shows lateral squaring of the superior femoral epiphysis, with associated loss of superior joint space (arrows). c Radiograph in a 14-year-old boy shows coxa magna of the femoral head, with a generally enlarged and widened superior capital epiphysis