Abstract: Objective To explore the application of medial sural artery perforator flaps （MSPFs） in repair of defects following buecal cancer ablation. Methods From 2011 to 2014, 11 patients were included in this study. Eleven MSPFs were harvested to reconstruct defects caused by buceal carcinoma ablation. A modified reference line was used when harvesting the flap. Doppler ultrasound was used to localize perforators. Vascular anastomosis were completed under the magnifying glass or microscope. Results All the flaps healed without venous insufficiency. Buccal defects were repaired primarily. Opening of the month and mastieatory function were well recovered. No obvious complications were found in donor site. No infection, dysfunction of leg or wound dehiscence were found. Only a concealed postoperative linear scar was left. Conclusion The MSPFs can be a good candidate for the repair of defects of the maxillofaeial area after cancer ablation.

Key words: Medial sural artery perforator flap, Buccal carcinoma, Free transplantation