Modified dovetail-plasty in scar revision.

Scar revision is one of the fundamental techniques in the field of plastic and reconstructive surgery. Local flaps, such as a Z-plasty, W-plasty, or geometric broken-line closure, have been used for scar revision. Camouflaging a scar during scar revision for marginal scars from skin grafts and flaps, trapdoor scars, and linear scars is difficult. We describe our experience with the use of modified dovetail-plasty for scar revision in these difficult areas. Our study group consisted of 28 cases among 22 patients (9 males and 13 females) with a mean age of 33.6 years (range, 6-61 years). The conspicuous scars were located on the face (50%) and extremities (50%). The authors designed Y-shaped incision lines to relax the skin tension lines on one side of the excision line and trapezoid incision lines on the other side. There were 16 follow-up operations performed over 6 months after the initial operation among a total of 22 patients. There were scar depressions (2 patients) and a hypertrophic scar (1 patient) at the interval area between the dovetail flaps. A diffuse hypertrophic scar occurred in 1 patient with a dorsal foot scar. The overall success rates of the procedure as assessed by the surgeons were as follows: excellent (75%), good (12.4%), fair (6.3%), and poor (6.3%). This new local flap can achieve an inconspicuous scar using a blurred scar line and reducing tension. The authors recommend a modified dovetail-plasty for the revision of trapdoor scars and scars under excessive tension.