• S H W L Verhiel, A A Piatkowski de Grzymala, E Van den Kerckhove, C Colla, and van der Hulst R R W J RR Plastic Surgery, Maastricht University Medical Center, Maastricht, Limburg, The Netherlands..
• Plastic Surgery, Maastricht University Medical Center, Maastricht, Limburg, The Netherlands. svennaverhiel@gmail.com.
• Skin Res Technol. 2016 Nov 1; 22 (4): 513-518.

IntroductionEvidence behind many of the current treatments in hypertrophic and keloid scars remains limited. Current objective methods to assess efficacy and provide follow-up can be complex and are not easily applied in clinical setting. The aim of this study was to assess reliability of a recently validated simplified technique for volume measurement in clinical practice.MethodsVolume measurement of 28 hypertrophic and keloid scars was conducted in 22 consecutive patients, using a three-dimensional stereophotogrammetry. Intra- and inter-rater reliability was assessed by the intraclass correlation coefficient (ICC) and the coefficient of variation (CV). The measurement error was expressed as limits of agreement (LoA).ResultsThe simplified method for three-dimensional volume measurement showed good intra-rater reliability with an ICC of 0.997 and a CV of 7.3%, and a good inter-rater reliability with an ICC of 0.999 and a CV of 5.7%. The plot of the differences and LoA showed near-perfect agreement between observers.ConclusionObjective evaluation of scar volume using the simplified three-dimensional measurement technique may complement subjective scoring and improve the ability to quantitatively compare the response to therapeutic methods.© 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

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