Abstract: Objective To explore the design and clinical application of flap pedicled with medial plantar artery branch.Methods Five cases with palmer soft tissue defects and six cases with finger pulp wound were repaired by medial foot flap and medial plantar flap based on the superficial and deep branch of the medial plantar artery respectively.The flap was 3 cm × 3 cm to 10 cm × 7 cm in size.The skin of donor site was repaired by full-thickness skin graft.Results Eleven cases of all flaps were survived and healed completely.Skin necrosis of donor site was observed in 1 case and healed under scab after dressing.Ten cases were followed up for 6 to 18 months.The flap texture was good and no bloated appearance was observed.Two-point discrimination was measured from 7 mm to 9 mm.After functional rehabilitation,the functional results were excellent in 5 cases,good in 3 cases,fair in 2 cases according to Chinese Medical Association Hand Surgery Function Assessment.Conclusion Flap pedicled with medial plantar artery branch is an ideal choice for repairing palmer and finger pulp wound with satisfied blood supply,shape and texture.

Key words: Flap, Medial plantar artery, Microsurgery