© 2014 Elsevier Ltd and ISBI. All rights reserved. Background: The DermaLab Combo1 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. Method: Three 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. Results: Inter-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. Conclusion: The 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 Combo1 will be valuable device for scar assessment.
Gankande, U., Duke, J., Danielsen, P., Dejong, H., Wood, F., & Wallace, H. (2014). Reliability of scar assessments performed with an integrated skin testing device - The DermaLab Combo®. Burns, 40(8), 1521-1529. https://doi.org/10.1016/j.burns.2014.01.025