fig22
![Prevention of hyper- and hypotrophic scars through surgical incisions in the direction of the “main folding lines” of the skin](https://image.oaes.cc/fbcc5024-8818-4996-9f7a-675c2eb3b6d1/3569.fig.22.jpg)
Figure 22. Incisions in abdominal surgery are still performed vertically, i.e., perpendicular to the main folding lines. In adolescents, vertical midline incisions often result in hypertrophic scars, which then widen under triamcinolone injections (A and B)