Abstract
With the increasing demand for autologous breast reconstruction, different surgical techniques have emerged to provide patients with the best possible result tailored to their individual needs. The upper thigh provides an alternative tissue resource in patients where abdominal based flaps are not feasible. While surgical outcomes and donor-site morbidity demonstrate favorable results using abdominal as well as thigh based free flaps for autologous breast reconstruction, the differences in skin constitution and color between the two flap donor-sites have not been investigated. From our flap data base, 60 patients who underwent unilateral secondary breast reconstruction with free DIEP or TMG flaps where randomly selected from our database. In both cohorts, postoperative pictures were used for photometric color evaluation of the reconstructed breast using the Delta E 2000 score at Time A (1.5 - 3 months), Time B (6 - 8 months) and Time C (12 - 20 months). Standard univariate descriptive statistics and group comparisons were performed. The DIEP flap demonstrated a better skin color match at Time A (p < 0.001), Time B (p = 0.003) and Time C (p = 0.009). Over time, both flaps showed improved Delta E 2000 values, and patient age was only associated with higher Delta E 2000 values in TMG flaps after 1.5 - 3 months (p = 0.021). The study provides the first objective analysis of skin color match in secondary autologous breast reconstruction. The DIEP flap reconstruction shows a preferable color match compared to the TMG flap. Both free flaps demonstrate an improved skin color match 12 - 20 months after secondary breast reconstruction.
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