Erratum: Musculoskeletal ultrasound on the hand and wrist in systemic sclerosis

Objectives: This study developed a musculoskeletal ultrasound (MSUS) protocol to evaluate rehabilitation outcomes in systemic sclerosis. Materials and Methods: Three MSUS methods (gray-scale, Doppler, strain elastography) and two acquisition techniques (long- vs short-axis; transducer on skin vs floating on gel) were examined in the forearm before and after rehabilitation treatment. For gray-scale, tissue thickness measures and intrarater and interrater reliability were calculated (intraclass correlation coefficients [ICCs]), and paired t tests examined differences among techniques. Results: Five people with diffuse cutaneous systemic sclerosis participated. The most valid and reliable gray-scale technique was with the transducer in long-axis, floating on gel. Doppler and strain elastography did not detect changes. Both dermal and subcutaneous thickness measurement error was small; intrarater and interrater reliability was good to excellent. Preliminary data indicate that treatment may lead to dermal thinning. Conclusion: A replicable protocol was established and may be an adjunct to rehabilitation outcome measurement in systemic sclerosis.

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Reliability and Validity of the Tender and Swollen Joint Counts and the Modified Rodnan Skin Score in Early Diffuse Cutaneous Systemic Sclerosis: Analysis from the Prospective Registry of Early Systemic Sclerosis Cohort

The Journal of Rheumatology ◽

10.3899/jrheum.160654 ◽

2017 ◽

Vol 44 (6) ◽

pp. 791-794 ◽

Cited By ~ 7

Author(s):

Jessica K. Gordon ◽

Gandikota Girish ◽

Veronica J. Berrocal ◽

Meng Zhang ◽

Christopher Hatzis ◽

...

Keyword(s):

Systemic Sclerosis ◽

Content Validity ◽

Reliability And Validity ◽

Intraobserver Reliability ◽

Musculoskeletal Ultrasound ◽

Skin Score ◽

Modified Rodnan Skin Score ◽

Diffuse Cutaneous Systemic Sclerosis ◽

Early Systemic Sclerosis

Objective.To determine the inter/intraobserver reliability of the tender and swollen joint counts (TJC, SJC) and the modified Rodnan Skin Score (mRSS) in diffuse cutaneous systemic sclerosis (dcSSc) and to assess content validity of the TJC/SJC.Methods.Ten rheumatologists completed the SJC, TJC, and mRSS on 7 patients. Musculoskeletal ultrasound (MSUS) was performed.Results.Interobserver and intraobserver reliability for the TJC was 0.97 and 0.99, for the SJC was 0.24 and 0.71, and for the mRSS was 0.81 and 0.94, respectively. MSUS abnormalities did not correspond with SJC/TJC.Conclusion.We demonstrate excellent inter- and intraobserver reliability for the mRSS and TJC in dcSSc. However, the SJC and TJC did not correspond to MSUS.

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