Objective To evaluate the clinical efficacy of retrograde femoral anterolateral skin flap with a dual blood supply for repairing complex destruction wound in calf. Methods From July 2011 to March 2014, 6 patients with destructive wound in calf were treated by modified retrograde femoral anterolateral flaps with a dual blood supply. The patients aged 25-56 years consisted of 4 males and 2 females. There were 4 patients with traffic injury and 2 machine crush injury. Wound ranged from 8 cm×10 cm to 10 cm×26 cm. Pedicle retrograde femoral anterolateral flap supplied by high cutaneous branches was harvested to cover the wound. Based on the principle ofbooster, flap blood flow was increased by anastomosis between lateral femoral circumflex artery and calf arteriovenous after 180 ° rotation of the skin flap. Results Flaps all survived. Markedly swollen flap was seen in 2 patients postoperatively, which impeded venous return, but significantly improved after stitches removal on one side of the flap. One-stage healing occurred in 3 patients. Good wound healing was noted in 2 patients while swelling subsided and secondary suture was done. Postoperative infection occurred in 1 patient and after debridement and dressing, the wound was finally healed. Two patients had scalded skin flap due to the careless two months after operation and healed after dressing. Follow-up lasted for 6 to 22 months with no delayed recurrent infection, myelitis and bone nonunion. Conclusion Retrograde femoral anterolateral flap with a dual blood supply may be a good option for wound repair of severe calf injury because of its normal appearance, good texture, long vascular pedicle, large surface area, high survival rate, improved flap blood supply and strong resistance to infection. Key words: Soft tissue injuries; Surgical flaps; Calf
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