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Manual Dermabrasion
Manual Dermabrasion
Although Iverson and McEvitt pioneered manual dermabrasion in the 1940s, the first randomized control trial evaluating this technique was conducted by Poulos et al. in 2002.24 Fifteen patients with scars following full-thickness skin excisions were assessed with a split scar model. Dermasanding was performed at 6 to 8 weeks to a randomized half of the scar using 200-grade sandpaper and evaluated at 1, 3, and 6 months following treatment for photographs and clinical grading. The side treated with manual dermabrasion showed overall improvement in 80% of cases, with greater improvement specifically in scar color and elevation. Scar width was not significantly affected. The only adverse effect reported was temporary postinflammatory hyperpigmentation.
Kidwell et al. explored the use of sandpaper alternatives for manual dermabrasion.6 In their 2008 study, electrocautery scratch pads were compared to different grits of sandpaper using an ex vivo pig foot model. Histologic samples from each abraded area were measured for depth of abrasion. Kidwell found that scratch pads, sanding screens, and 60- to 200-grit sandpaper all reached a similar depth of 0.10 to 0.15mm, equivalent to the level of the papillary dermis. Only 400-grit sandpaper differed, reaching a more superficial depth of 0.07 to 0.12 mm.