Our findings suggest that genetically determined low MBL levels may predispose children to JIA in a Hungarian population. These data warrant further research to investigate the role of the lectin-dependent complement system in the pathogenesis of JIA.

Anti-TNF-α agents (etanercept and adalimumab) are effective, safe and well tolerated in JIA patients. Extension of this study for a longer follow-up period and to the patients with JIA after the age of 18 years (with validated and comparable disease activity parameters) is needed to evaluate the long-term effectiveness and safety of the TNF-α inhibitors.

Aseptic loosening is the most common problem of hip arthroplasties, limiting its long term success. We report a study of pulsed electromagnetic field (PEMF) treatment in 24 patients with this complication. At the end of treatment, six months and one year later, pain and hip movements improved significantly with the exception of flexion and extension. There was significant improvement in both isotope scans and ultrasonography, but not in plain X-ray. The decreased pain and improved function suggest that PEMF is effective in improving symptoms of patients with loose hip replacement. No improvement, however, can be expected in patients with severe pain due to gross loosening.

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