Real-time vs static scoring in musculoskeletal ultrasonography in patients with inflammatory hand osteoarthritis.

Abstract

OBJECTIVES:

Agreement between real-time and static ultrasonography has not been studied in musculoskeletal diseases. We studied this agreement in inflammatory hand OA.

METHODS:

Ultrasonography was performed blinded to clinical information of 30 joints of 75 patients with hand OA, treated with prednisolone in a randomized placebo-controlled double-blind trial. Images were scored real-time at acquisition and stored images were scored static (paired in known chronological order) for inflammatory features and osteophytes (score 0-3). Agreement between methods was studied at joint level with quadratic weighted kappa. At patient level intra-class correlations (ICC) of sum scores and change in sum-scores (delta baseline-week 6) were calculated. Responsiveness of scoring methods was analysed with generalized estimating equations (GEE) with treatment as independent and ultrasonography findings as dependent variable.

RESULTS:

Agreement at baseline was good to excellent at joint level (kappa 0.72-0.88) and moderate to excellent at patient level (ICC 0.58-0.91). Agreement for change in sum scores was poor to fair for synovial thickening and effusion (ICC 0.18 and 0.34, respectively), while excellent for Doppler signal (ICC 0.80). Real-time ultrasonography discriminated between prednisolone and placebo with a mean between-group difference of synovial thickening of -2.5 (95% CI: -4.7, -0.3). Static ultrasonography did not show a decrease in synovial thickening.

CONCLUSION:

While cross-sectional agreement between real-time and static ultrasonography is good, static ultrasonography measurement of synovial thickening did not show responsiveness to prednisone therapy while real-time ultrasonography did. Therefore, when ultrasonography is used in clinical trials, real-time dynamic scoring should remain the standard for now.

• Authors: Lotte A van de Stadt, Féline P B Kroon, Frits R Rosendaal, Desirée van der Heijde, Monique Reijnierse, Naghmeh Riyazi, Ragnhild de Slegte, Jendé van Zeben, Cornelia F Allaart, Margreet Kloppenburg, Marion C Kortekaas
• Journal: Rheumatology (Oxford, England) (Rheumatology (Oxford)) Vol. 61 Issue SI Pg. SI65-SI72 (04 18 2022) ISSN: 1462-0332 [Electronic] England
• PMID: 34264344 (Publication Type: Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
• Copyright: © The Author(s) 2021. Published by Oxford University Press on behalf of the British Society for Rheumatology.

Chemical References

• Prednisolone

Topics

• Cross-Sectional Studies
• Humans
• Osteoarthritis (diagnostic imaging, drug therapy)
• Prednisolone (therapeutic use)
• Reproducibility of Results
• Severity of Illness Index
• Synovitis (diagnostic imaging, drug therapy)
• Ultrasonography (methods)
• Ultrasonography, Doppler