Longitudinal reliability of the OMERACT thumb base osteoarthritis magnetic resonance imaging scoring system (TOMS)

Féline P.B. Kroon, Sjoerd Van Beest, Frédérique Gandjbakhch, Charles G. Peterfy, Su Chen, Philip G. Conaghan, Iris Eshed, Violaine Foltz, Harry K. Genant, Ida K. Haugen, Jeroen K. Medema, Mikkel Østergaard, Lanju Zhang, Marc C. Levesque, Margreet Kloppenburg

Research output: Contribution to journalArticlepeer-review

Abstract

Objective. To assess the longitudinal reliability of the Outcome Measures in Rheumatology (OMERACT) Thumb base Osteoarthritis Magnetic resonance imaging (MRI) Scoring system (TOMS). Methods. Paired MRI of patients with hand osteoarthritis were scored in 2 exercises (6-mo and 2-yr followup) for synovitis, subchondral bone defects (SBD), osteophytes, cartilage assessment, bone marrow lesions (BML), and subluxation. Interreader reliability of delta scores was assessed. Results. Little change occurred. Average-measure intraclass correlation coefficients were good-excellent (≥ 0.71), except synovitis (0.55-0.83) and carpometacarpal-1 osteophytes/cartilage assessment (0.47/0.39). Percentage exact/close agreement was 52-92%/68-100%, except BML in 2 years (28%/64-76%). Smallest detectable change was below the scoring increment, except in SBD and BML. Conclusion. TOMS longitudinal reliability was moderate-good. Limited change hampered assessment.

Original languageEnglish
Pages (from-to)1228-1231
Number of pages4
JournalJournal of Rheumatology
Volume46
Issue number9
DOIs
StatePublished - 1 Sep 2019

Keywords

  • Hand
  • Magnetic resonance imaging
  • Omeract
  • Osteoarthritis
  • Outcomes research
  • Thumb base

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