The systematic literature search involved PubMed and the Web of Science (including Science Citation Index).
The search resulted in 29 articles (including seven reviews) dealing with a new, modified, or validated scale. Scar scales assess several characteristics, of which color, pliability, and thickness were considered the most important. Physical limitation, pain, and pruritus are often more disturbing than the appearance of the scar, and are therefore also introduced in scar evaluation, as well as the interference with daily life activities (e.g., psychologic impact).
In contrast to the more objective scar assessment tools, scar scales usually cover more aspects of the scars and are less time-consuming in clinical practice. However, no strong conclusions can be made about their efficacy and validity. In addition to digital photography, scar scales are a valuable instrument in the clinical evaluation and follow-up of scars.