• Alberto Franchi, Elmar Fritsche, and Mario F Scaglioni.
• Depatment of Hand and Plastic Surgery, Luzerner Kantonsspital, Spitalstrasse 6000 Luzern 16, Lucerne, Switzerland.
• Injury. 2020 Dec 1; 51 (12): 2922-2929.

IntroductionPropeller flaps have gained great popularity among reconstructive surgeons; however, the inability to directly close the donor site of large propeller flaps constitutes a well-known limitation of this technique. Skin grafting of the donor area is not always feasible nor desirable. To address large propeller flaps secondary defects, we investigated the use of a second propeller flap harvested from a nearby region of relative skin redundancy to assist the donor site closure generated by the first. Since the donor defect of the second flap is closed by direct suture, the aim of this "sequential" propeller flaps technique is to achieve complete, like-with-like, soft tissue restoration while avoiding skin grafting.MethodsFrom April 2018 to September 2019, eight patients presenting post-traumatic soft tissue defects were planned to be reconstructed by means of the sequential propeller flaps technique, for a total of 16 propeller flaps. The locations of the defects included the distal leg in four cases, the heel in two cases, the proximal lateral thigh in one case and proximal posterior thigh in the remaining one. All the flaps but one were harvested as a perforator-based propeller type and rotated by different degrees around the skeletonized perforator. In one patient, due to an intraoperative complication following the first flap harvest, the harvest of the second flap was abandoned.ResultsIn all but one patient, a complete, tension free primary closure of all wounds was achieved without complications, the functional recovery as well the esthetic outcome were excellent. One patient showed intraoperative signs of vascular insufficiency involving 15% of the first flap. The plan of harvesting the second flap was intraoperatively abandoned and the definitive wound closure with a free muscle gracilis was carried out the following week.ConclusionIn some selected cases, the use of multiple propeller flaps performed in sequence allows the surgeon to obtain complete, like-with-like wound closure with vascularized tissue avoiding a free tissue transfer procedure, however, it requires a vast experience with propeller flaps and meticulous preoperative planning.Copyright © 2020 Elsevier Ltd. All rights reserved.

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