Juvenile idiopathic arthritis (JIA) is a chronic inflammatory disease in children affecting mobility and physical function. The hip involvement represents a frequent complication in JIA patients. The assessment of hip damage becomes a mandatory step in disease monitoring. However, radiological scoring was not standardized. This study aimed to compare the two scoring systems previously proposed, examine their repeatability and their intra and inter agreement.

Inclusion Criteria:

• All included patient followed the ILAR criteria of JIA and have a hip involvement. This later was defined as the presence of rang motion limitation, and abnormal findings in pelvic radiographic, or ultrasound or MRI in the coxo-femoral joint.

Exclusion Criteria:

• The presence of a contraindication to the performance of conventional radiography any disease affecting cognition Patients who have had surgery on the hip

General data demographics , disease characteristics [symptom duration, disease presentation, JIA subtypes, Antigen(HLA) B27 positivity)], disease activity: Juvenile arthritis disease activity (JADAS), were collected.

All patients underwent a posteroanterior pelvic radiograph