Background: We present the usefulness of MDCT in the planning of “Propeller flaps”.
Methods: We retrospectively analyzed all cases in which perforator CT angiography (P-CTA) by MDCT was performed before reconstruction using propeller flaps. The examined parameters were: the diagnosis, area that needed reconstruction, pedicled perforator, type of pedicle, size and shape of the flap, donor site, flap survival area, the sensitivity and specificity with which the perforators were identified by MDCT and the surgical duration.
Results: In total, eleven patients underwent reconstruction with thirteen propeller flaps. The reconstructed sites ranged widely: the chest, axilla, vulva, buttocks, and lower legs. The pedicles were subcutaneous pedicles in three patients (five flaps) and complete perforators in eight patients (eight flaps). Nine flaps were oval flaps, three were bi-lobed, and one was quadri-lobed. The minimum and maximum flap sizes were 6.5×2 and 27×8 cm, respectively, and the donor site was closed primarily in all but two cases. All flaps except one survived completely. The pedicled perforators identified by MDCT preoperatively were located accurately without any errors during the harvesting procedure. Furthermore, in all cases except one, surgery was completed on or before the scheduled time.
Conclusions: As a preoperative perforator assessment tool, MDCT is superior to other methods in that comprehensive imaging can be achieved in a short time, it is highly accurate, and it provides high-resolution images. In addition, the actual surgical duration in our series was 21% less than that without MDCT. Thus, MDCT is a highly effective tool for the preoperative study of propeller flaps that makes it possible to harvest these flaps safely.
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