• T U Gankande, J M Duke, P L Danielsen, H M DeJong, F M Wood, and H J Wallace.
• Burn Injury Research Unit, School of Surgery, The University of Western Australia, Australia. Electronic address: Uliya.Gankande@uwa.edu.au.
• Burns. 2014 Dec 1;40(8):1521-9.

BackgroundThe DermaLab Combo(®) is a device with potential to make objective measurements of key scar components - pigmentation, vascularity, pliability and thickness. This study assessed the inter-rater and test-retest reliability of these measurements.MethodThree raters performed scar assessments on thirty patients with burn scars using the DermaLab Combo(®). Measurements of pigmentation, vascularity, pliability and thickness were made and intra-class correlation coefficients (ICC) were derived for inter-rater and test-retest reliability.ResultsInter-rater reliability was found to be "excellent" in the 'best' and 'worst' areas of the index scar and normal skin for pigmentation (ICC: 0.94-0.98) and thickness (ICC: 0.86-0.96). Test-retest reliability was also "excellent" for pigmentation (ICC: 0.87-0.89) and thickness (ICC: 0.92-0.97) in all areas. Vascularity showed "good" to "excellent" inter-rater reliability (ICC: 0.66-0.84) in all areas however test-retest reliability was "low" (ICC: 0.29-0.42). Test-retest reliability was "excellent" for pliability (ICC: 0.76-0.91). Technical limitations were encountered making measurements in some scars for thickness, and in particular, pliability.ConclusionThe DermaLab Combo(®) measured pigmentation, thickness and pliability with "excellent" reliability. If future studies provide protocols to improve test-retest reliability of vascularity measurements and obtain pliability measurements more successfully, the DermaLab Combo(®) will be valuable device for scar assessment.Copyright © 2014 Elsevier Ltd and ISBI. All rights reserved.

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