Propeller Flap: A Feasible Flap for Distal Third of Leg Defects – Two Cases Done at the Plastic Surgery Unit of the Greater Accra Regional Hospital

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Introduction: The traditional way of reconstructing soft tissue defects of the lower limb utilized muscle flaps as the ‘gold standard’ for Gustillo Anderson Grade III B fractures of the upper and middle thirds of the leg. Defects of the lower third of the leg are usually reconstructed with free flaps because of paucity and decreased reach of muscles. In resource constrained environments where free flaps are not routine with high failure rates, fasciocuataneous flaps are the only option left. We present our experience with the novel pedicled propeller perforator flaps for reconstruction of soft tissue defects in the lower limb. Case Presentation: Between June and October 2020, 2 consecutive patients - a 34-year-old male and a 51-year-old female, were referred for cover for their distal leg defects from the Orthopedics and trauma Unit. All patients were operated on under spinal anaesthesia. Perforators from posterior tibial and peroneal arteries respectively, were identified pre-operatively with hand-held doppler and the propeller-pattern skin paddle was designed around the perforator closest to defect. After elevation of flaps and skeletonization of perforators, they were then rotated (180 degrees) and inset into defects. Case 1 had whole flap (104 cm2) surviving with only minor marginal epidemiolysis at tip whilst the second flap (58.5cm2) had necrosis of only the business end of the flap but subsequently healed by secondary intention after serial dressings. Both had secondary defects proximally after the rotation, which were skin grafted with 100% take. Conclusion: Propeller flap in our experience, is a feasible versatile option for reconstruction of soft tissue defects in the distal third of the leg.

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