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AB0719 UTILITY OF THE RHEUMATOID ARTHRITIS FOOT DISEASE ACTIVITY INDEX (RADAI-F5) IN ASSESSING RHEUMATOID ARTHRITIS ACTIVITY

2024; BMJ; Linguagem: Inglês

10.1136/annrheumdis-2024-eular.6335

1468-2060

R. Ben Chehida, R. Fakhfakh, D. Khalifa, C. Daldoul, N. El Amri, H. Hachfi, K. Baccouche, Elyes Bouajina,

Bone and Joint Diseases

Background: Disease activity indices in rheumatoid arthritis (RA) often do not assess the feet, potentially leading to residual symptoms in patients classified as in remission. The Rheumatoid Arthritis Foot Disease Activity Index (RADAI-F5) is a newly validated tool designed to evaluate RA activity specifically in the feet Objectives: The aim of this study is to investigate the association between RA activity in the feet and overall RA activity and functional indices, as well as joint ultrasound data. Methods: This is a cross-sectional study involving patients diagnosed with RA over a one-month period. Quality of life was assessed using the Health Assessment Questionnaire (HAQ). RA activity in the feet was calculated using the RADAI-F5 index, functional indices for the rheumatoid foot were collected using the self-administered Foot Function Index (FFI-F) questionnaire, and fatigue was estimated using the Fatigue Severity Scale (FSS). An ultrasound of the ankles and forefeet was conducted. Results: A total of 31 patients (27 females) were included. The mean age was 56.52 years ± 12.746 [25-84], with an average disease duration of 10.55 years ± 8.481 [1-34]. RA activity was categorized as remission (n=10), low (n=3), moderate (n=17), and severe (n=1). Metatarsalgia was found in 51.6% of patients (n=16), talalgia in 13 patients, and ankle pain in 16 patients. The mean RADAI-F5 index was 6.226% ± 2.160 [1-9.2]. The RADAI-F5 score correlated with DAS28vs activity score (r=0.8; p=0.0001), fatigue score (r=0.3; p=0.05), FFI-F functional score (r=0.5; p=0.001), and the presence of synovitis on joint ultrasound (p=0.03). It was not associated with the HAQ functional score (p>0.055). Conclusion: The RADAI F-5 was associated with RA activity and the presence of synovitis and tenosynovitis on ultrasound. This study confirms the validity of RADAI F-5 in monitoring RA activity in the feet REFERENCES: NIL. Acknowledgements: NIL. Disclosure of Interests: None declared.