{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,14]],"date-time":"2026-06-14T23:15:50Z","timestamp":1781478950644,"version":"3.54.1"},"reference-count":24,"publisher":"The Journal of Rheumatology","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Rheumatol"],"published-print":{"date-parts":[[2019,4]]},"abstract":"<jats:sec><jats:title>Objective.<\/jats:title><jats:p>To evaluate the intraobserver and interobserver reliability of the ultrasonographic (US) assessment of subtalar joint (STJ) synovitis in patients with rheumatoid arthritis (RA).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods.<\/jats:title><jats:p>Following a Delphi process, 12 sonographers conducted an US reliability exercise on 10 RA patients with hindfoot pain. The anteromedial, posteromedial, and posterolateral STJ was assessed using B-mode and power Doppler (PD) techniques according to an agreed US protocol and using a 4-grade semiquantitative grading score for synovitis [synovial hypertrophy (SH) and signal] and a dichotomous score for the presence of joint effusion (JE). Intraobserver and interobserver reliability were computed by Cohen\u2019s and Light\u2019s \u03ba. Weighted \u03ba coefficients with absolute weighting were computed for B-mode and PD signal.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results.<\/jats:title><jats:p>Mean weighted Cohen\u2019s \u03ba for SH, PD, and JE were 0.80 (95% CI 0.62\u20130.98), 0.61 (95% CI 0.48\u20130.73), and 0.52 (95% CI 0.36\u20130.67), respectively. Weighted Cohen\u2019s \u03ba for SH, PD, and JE in the anteromedial, posteromedial, and posterolateral STJ were \u22120.04 to 0.79, 0.42\u20130.95, and 0.28\u20130.77; 0.31\u20131, \u22120.05 to 0.65, and \u22120.2 to 0.69; 0.66\u20131, 0.52\u20131, and 0.42\u20130.88, respectively. Weighted Light\u2019s \u03ba for SH was 0.67 (95% CI 0.58\u20130.74), 0.46 (95% CI 0.35\u20130.59) for PD, and 0.16 (95% CI 0.08\u20130.27) for JE. Weighted Light\u2019s \u03ba for SH, PD, and JE were 0.63 (95% CI 0.45\u20130.82), 0.33 (95% CI 0.19\u20130.42), and 0.09 (95% CI \u22120.01 to 0.19), for the anteromedial; 0.49 (95% CI 0.27\u20130.64), 0.35 (95% CI 0.27\u20130.4), and 0.04 (95% CI \u22120.06 to 0.1) for posteromedial; and 0.82 (95% CI 0.75\u20130.89), 0.66 (95% CI 0.56\u20130.8), and 0.18 (95% CI 0.04\u20130.34) for posterolateral STJ, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion.<\/jats:title><jats:p>Using a multisite assessment, US appears to be a reliable tool for assessing synovitis of STJ in RA.<\/jats:p><\/jats:sec>","DOI":"10.3899\/jrheum.171490","type":"journal-article","created":{"date-parts":[[2018,11,1]],"date-time":"2018-11-01T11:19:22Z","timestamp":1541071162000},"page":"351-359","source":"Crossref","is-referenced-by-count":9,"title":["Ultrasound of Subtalar Joint Synovitis in Patients with Rheumatoid Arthritis: Results of an OMERACT Reliability Exercise Using Consensual 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