Subcision means “undercutting”. This method was developed by American dermatologist David Orentreich (Fig. 1) for the correction of atrophic scars.
Fig.1. Subcision. Shema
The principal of this method is as follows. The process of scar maturation is accompanied by the development of connective tissues that fixate the scar bottom embedding it into derma. Connective bridles are subcised by the needle and the released scar bottom elevates. The defect aligns (Fig.2)
Fig.2. Atrophic scars of the right cheek before and after the subcision procedure
Fig.3. Correction of old atrophic scars with subcision