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Research ArticleOsteoarthritis

Are OMERACT Knee Osteoarthritis Ultrasound Scores Associated With Pain Severity, Other Symptoms, and Radiographic and Magnetic Resonance Imaging Findings?

Win Min Oo, James M. Linklater, Kim L. Bennell, Danielle Pryke, Shirley Yu, Kai Fu, Xia Wang, Vicky Duong and David J. Hunter
The Journal of Rheumatology February 2021, 48 (2) 270-278; DOI: https://doi.org/10.3899/jrheum.191291
Win Min Oo
1W.M. Oo, PhD, S. Yu, FRACP, K. Fu, PhD, X. Wang, PhD, V. Duong, DPT, D.J. Hunter, PhD, Rheumatology Department, Royal North Shore Hospital and Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney;
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  • ORCID record for Win Min Oo
  • For correspondence: wioo3335@uni.sydney.edu.au winminoo@ummdy.com drwinminoopmr@gmail.com
James M. Linklater
2J.M. Linklater, FRANZCR, D. Pryke, Grad Dip Medical Sonography, Department of Musculoskeletal Imaging, Castlereagh Sports Imaging Center, St. Leonards, Sydney;
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Kim L. Bennell
3K.L. Bennell, PhD, Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, Faculty of Medicine Dentistry & Health Sciences, The University of Melbourne, Melbourne, Australia.
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Danielle Pryke
2J.M. Linklater, FRANZCR, D. Pryke, Grad Dip Medical Sonography, Department of Musculoskeletal Imaging, Castlereagh Sports Imaging Center, St. Leonards, Sydney;
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Shirley Yu
1W.M. Oo, PhD, S. Yu, FRACP, K. Fu, PhD, X. Wang, PhD, V. Duong, DPT, D.J. Hunter, PhD, Rheumatology Department, Royal North Shore Hospital and Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney;
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Kai Fu
1W.M. Oo, PhD, S. Yu, FRACP, K. Fu, PhD, X. Wang, PhD, V. Duong, DPT, D.J. Hunter, PhD, Rheumatology Department, Royal North Shore Hospital and Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney;
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Xia Wang
1W.M. Oo, PhD, S. Yu, FRACP, K. Fu, PhD, X. Wang, PhD, V. Duong, DPT, D.J. Hunter, PhD, Rheumatology Department, Royal North Shore Hospital and Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney;
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Vicky Duong
1W.M. Oo, PhD, S. Yu, FRACP, K. Fu, PhD, X. Wang, PhD, V. Duong, DPT, D.J. Hunter, PhD, Rheumatology Department, Royal North Shore Hospital and Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney;
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David J. Hunter
1W.M. Oo, PhD, S. Yu, FRACP, K. Fu, PhD, X. Wang, PhD, V. Duong, DPT, D.J. Hunter, PhD, Rheumatology Department, Royal North Shore Hospital and Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney;
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Abstract

Objective. To investigate the associations of Outcome Measures in Rheumatology (OMERACT) ultrasound scores for knee osteoarthritis (OA) with pain severity, other symptoms, and OA severity on radiographs and magnetic resonance imaging (MRI).

Methods. Participants with symptomatic and mild to moderate radiographic knee OA underwent baseline dynamic ultrasound (US) assessment according to standardized OMERACT scanning protocol. Using the published US image atlas, a physician operator obtained semiquantitative or binary scores for US pathologies. Clinical severity was measured on numerical rating scale (NRS) and Knee Injury and Osteoarthritis Outcome Score (KOOS) symptoms and pain subscores. OA severity was assessed using the Kellgren-Lawrence (KL) grade on radiographs and MRI Osteoarthritis Knee Score (MOAKS) on noncontrast-enhanced MRI. Separate linear regression models were used to determine associations of US OA pathologies with pain and KOOS subscores, and Spearman correlations were used for US scores with KL grade and MOAKS.

Results. Eighty-nine participants were included. Greater synovial hypertrophy, power Doppler (PD), and meniscal extrusion scores were associated with worse NRS pain [β 0.92 (95% CI 0.25–1.58), β 0.73 (95% CI 0.11–1.35), and β 1.01 (95% CI 0.22–1.80), respectively]. All greater US scores, except for cartilage grade, demonstrated significant associations with worse KOOS symptoms, whereas only PD and meniscal extrusion were associated with worse KOOS pain. All US scores, except for PD, were significantly correlated with KL grade. US pathologies, except for cartilage, revealed moderate to good correlation with their MOAKS counterparts, with US synovitis having the greatest correlation (0.69, 95% CI 0.60–0.78).

Conclusion. OMERACT US scores revealed significant associations with pain severity, KL grade, and MOAKS.

Key Indexing Terms:
  • association
  • imaging
  • musculoskeletal ultrasound
  • osteoarthritis
  • Accepted for publication April 28, 2020.
  • Copyright © 2021 by the Journal of Rheumatology
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Vol. 48, Issue 2
1 Feb 2021
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Are OMERACT Knee Osteoarthritis Ultrasound Scores Associated With Pain Severity, Other Symptoms, and Radiographic and Magnetic Resonance Imaging Findings?
Win Min Oo, James M. Linklater, Kim L. Bennell, Danielle Pryke, Shirley Yu, Kai Fu, Xia Wang, Vicky Duong, David J. Hunter
The Journal of Rheumatology Feb 2021, 48 (2) 270-278; DOI: 10.3899/jrheum.191291

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Are OMERACT Knee Osteoarthritis Ultrasound Scores Associated With Pain Severity, Other Symptoms, and Radiographic and Magnetic Resonance Imaging Findings?
Win Min Oo, James M. Linklater, Kim L. Bennell, Danielle Pryke, Shirley Yu, Kai Fu, Xia Wang, Vicky Duong, David J. Hunter
The Journal of Rheumatology Feb 2021, 48 (2) 270-278; DOI: 10.3899/jrheum.191291
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Keywords

ASSOCIATION
IMAGING
MUSCULOSKELETAL ULTRASOUND
OSTEOARTHRITIS

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