The free flap from the superficial palmar branch of radial artery innervated by the lateral cutaneous nerve of the forearm repair the defects of finger pulp

Abstract

Objective To explore the outcomes of free flap from the radial artery superficial palmar branch (RASP) innervated by the lateral cutaneous nerve of the forearm for repairing the defects of finger pulp. Methods From April, 2013 to February, 2015, 20 fingers in 20 cases were treated with free flap from RASP innervated by the later-al cutaneous nerve of the forearm. The area of flap was from 1.8 cm×2.0 cm to 2.0 cm×4.0 cm. Postoperative follow up was done termly. Results All 20 flaps survived. All cases were followed-up for 7-20 months(averag, 12 months). The flaps appeared well with good texture. The two-point discrimination was from 7 mm to 12 mm, and graded with S3 and S3+ sensation.There was little scar noted at the donor site in the wrist.There was no influence of hand and wrist func-tion. Conclusion The method of using free flap from SASP innervated by the lateral cutaneous nerve of the forearm to repair the defects of finger pulp has good clinical effect. Key words: Free flap; Superficial palmar branch, radial artery; Lateral cutaneous nerve of the forearm; Finger; Injury