[Application of radial-lateral forearm free perforator flap on repairing of soft tissue defects in finger].

Objective: To investigate the effectiveness of radial-lateral forearm free perforator flap on repairing of soft tissue defects in the finger. Methods: Between January 2017 and May 2018, 26 cases of finger skin defects were treated with radial-lateral forearm free perforator flap based on the radial branch of the posterior interosseus artery. There were 21 males and 5 females, with an average age of 26.6 years (range, 19-56 years). The cause of injury included the cutting injury in 16 cases and crush injury in 10 cases. The interval between injury and admission was 30 minutes to 4 hours (mean, 1.5 hours). The injury located at thumb in 6 cases, index finger in 8 cases, middle finger in 6 cases, ring finger in 3 cases, and little finger in 3 cases; and at the dorsum of finger in 6 cases, the lateral side in 6 cases, and the palm in 14 cases. All wounds were accompanied with the tendon and bone exposures, and phalangeal fractures occurred in 10 cases. The size of the defects ranged from 2.0 cm×1.0 cm to 4.0 cm×2.5 cm. And the size of the flap ranged from 2.5 cm×1.5 cm to 4.5 cm×3.0 cm. All wounds at donor sites were sutured directly. 结果: 患者均获随访，随访时间 4～12 个月，平均 7 个月。其中 24 例皮瓣顺利成活，创面Ⅰ期愈合；2 例皮瓣远端部分坏死，经对症处理后愈合。供区切口均Ⅰ期愈合。皮瓣外形满意，质地柔软。术后 4 个月皮瓣两点辨别觉为 5～10 mm，平均 8 mm；皮瓣感觉恢复至 S 3。前臂桡背侧供区遗留线样瘢痕。. Conclusion: The radial-lateral forearm free perforator flap in repairing of the soft tissues in finger can shorten the disease duration, reduce the damage of the donor site, and improve the patients' quality of life.