骨科 年 月第 卷卷第 期 · · clinical effect of the proximal ulnar artery perforator flap Methods repairing skin and soft tissue defect on the volar suface of digits. The clinical data of 11 patients with skin and soft tissue defect on the volar suface of digits undergoing the proximal ulnar artery perforator flap repair in our hospital from April 2019 to February 2021 were analyzed retrospectively analyzed, including 7 males and 4 females, with age of 20⁃52 years old (mean age years old). The proximal ulnar artery perforator flap was used to repair the skin and soft tissue defect on the volar suface of digits. The defect area of the skin and soft tissue defect was from cm× cm to cm× cm, and the mean area of all wounds was cm× cm. Sizes of the flaps ranged from cm× cm to cm× cm, with a mean of cm× cm. Finger function was evaluated according to the total active range of motion (TAM) system of the American Association Results of Hand Surgeons. All flaps survived and the outline was good. The wound healed by first intention in 11 cases. All patients were followed up for 6 to 22 months, average months. The flaps had good consistency and color, conto