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01.12.2017 | Research article | Ausgabe 1/2017 Open Access

Pediatric Rheumatology 1/2017

Radiographic damage in hands and wrists of patients with juvenile idiopathic arthritis after 29 years of disease duration

Zeitschrift:
Pediatric Rheumatology > Ausgabe 1/2017
Autoren:
Anne M. Selvaag, Eva Kirkhus, Lena Törnqvist, Vibke Lilleby, Hanne A. Aulie, Berit Flatø

Abstract

Background

There are few studies on radiographic outcome after long-term disease duration in juvenile idiopathic arthritis (JIA). We wanted to evaluate 29-year radiographic outcome in hands/wrists and predictors of damage in patients with long-term active JIA.

Methods

Patients diagnosed from 1980 to 1985, who had active disease at 15-, 23- or 29-year follow-up and arthritis in the wrists during the disease course, were reexamined with radiographs of hands/wrists. We used the adapted version of the Sharp van der Heijde (aSvdH) score and Carpal Height Ratio (CHR) to evaluate radiographic outcome.

Results

Sixty patients, mean age 38 years, were reexamined at median 29-year follow-up. 33 patients (55%) had an aSvdH score >0, median score was 4.0 (range 0–313), and 25% of the scores were high (≥53). Most patients with radiographic damage (88%) had both erosions and JSN. 52% of the patients had damage in the wrists, 43% in the MCP joints and 40% in the PIP joints.
The CHR correlated strongly with the aSvdH. Both scores had high correlations with the Juvenile Arthritis Damage Index and the number of joints with limited range of motion (LROM) (rs = -0.688 to 0.743, p ≤ 0.001). The aSvdH correlated weakly with measures of disease activity.
The number of joints with LROM, ESR and the HAQ disability score at 15 years and HLAB27 positivity predicted the aSvdH score and the CHR at 29-year follow-up.

Conclusions

The majority of patients with long-term active JIA had modest radiographic damage, but more frequently in wrists than in fingers. The radiographic scores correlated well with measures of disease damage. Restricted mobility in joints at 15 years was the most important predictor of radiographic damage at 29 years.
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