Clinical application of digital artery dorsal branch flap for coverage of soft tissue defect of the fingers

Abstract

Objective To investigate and evaluate the results of covering soft tissue defect on the middle and distal segments of the fingers using digital artery dorsal branch flap.Methods From May 2010 to October 2011,18 cases 19 fingers with soft tissue defects were treated with transferring the digital artery dorsal branch flap.The flap size ranged from 2.0 cm× 3.0 cm to 2.5 cm× 4.5 cm cm.The defect at the donor site was covered with full-thickness skin graft from the forearm.Results Sixteen flaps of 19 fingers survived.Partial necrosis occurred in 3 flaps.All the skin grafts at the donor sites survived.Fifteen cases of 15 fingers were follow-up for 6 to 12 months.The color,texture and contour of the flaps were good.Two-point discrimination was 8 to 10 mm.No obvious functional problem was found in PIP and DIP joint motion.Conclusion The digital artery dorsal branch flap is a good option for coverage of soft tissue defect of the finger.Familiarization with the anatomy and careful handling of the pivot point of the flap are key to ensuring survival of the flap and gaining good aesthetic and functional outcomes. Key words: Surgical flaps; Finger injuries; Treatment outcome