Repair and sensory reconstruction of the children's finger pulp defects with perforator pedicled propeller flap in proper digital artery.

ABSTRACT

OBJECTIVE: This study was designed to investigate the clinical effects of adopting perforator pedicled propeller flap in the proper digital artery for treatment and sensory reconstruction of finger pulp defects in children. PATIENTS AND METHODS: Perforator pedicled propeller flap of proper digital arteries in thirty-one fingers from twenty-three children patients were selected for repairing the pulp defects on the 2nd to the 5th fingers. All cases were treated from September 2012 to December 2013. To properly reconstruct the pulps' feeling we needed the dorsal branch of the proper digital nerve in the flap to be consistent with the broken end of proper digital nerve in pulps' wound. A free skin graft was carried out with full-thickness skin taken from the medial thigh for flap donor area. We scheduled two post-operation return visits, one in six months and the second visit in twelve months following the operation. Parents' satisfaction with the postoperative appearance of their children's fingers was assessed based on Michigan Hand Outcome Questionnaire. RESULTS: All operations were performed successfully and all wounds healed in the first period and all flaps survived. During the final follow-up, the shape recovery of flaps and their donor areas were examined and satisfactory results were obtained. All pulps were full and round without any obvious pigmentation or scar contracture. The sensory recovery of pulps was achieved S3+, and the two-point discrimination was 4.5 to 6.0 mm (with 5.1 mm being the average value). Parents' satisfaction with the postoperative results was very promising with twenty-one cases of very satisfied and two cases of satisfied parents. CONCLUSIONS: The operation method used in this study demonstrated to be a safe and reliable procedure producing a very good flap blood supply as well as excellent sensory recovery and satisfactory postoperative appearance.