Abstract: 【Abstract】 Objective To summarize and analyze the efficacy of the upper eyelid orbicularis oculi myocutaneous island flap in repairing secondary defects after resection of eyelid and periorbital skin tumors. Methods A retrospective analysis was carried out on clinical data collected from 28 patients, whose secondary eyelid and periorbital defects were repaired with the upper eyelid orbicularis oculi myocutaneous island flaps in the Department of Dermatology, Hangzhou Third People′s Hospital from August 2019 to June 2021. The survival condition of the flaps was observed after the operation, and the appearance of the upper eyelid and periorbital skin as well as tumor recurrence were evaluated during the follow up. Results Among the 28 cases, there were 6 males and 22 females; their ages ranged from 47 to 87 years （70.5 ± 10.9 years）, 7 patients aged 80 - 89 years, 8 aged 70 - 79 years, 8 aged 60 - 69 years, 4 aged 50 - 59 years, and 1 patient aged 40 - 49 years. Skin defects were distributed at the upper eyelid in 1 case, at the lower eyelid in 9 cases, at the inner canthus in 1 case, at the outer canthus in 3 cases, at the upper eyebrow in 1 case, at the dorsum of the nose in 3 cases, and at the junction of the external nose, inner canthus and lower eyelid in 10 cases. The skin defects varied from 0.5 cm × 1.0 cm to 2.3 cm × 3.1 cm in size. The designed upper eyelid orbicularis oculi myocutaneous flap was 0.5 - 1.8 cm in width and 3 - 4 cm in length, and the length of the subcutaneous tunnel was 1.2 - 2.5 cm. During the follow-up of 6 months to 1.5 years, all flaps survived; scars on the upper eyelid donor site were not obvious; there was no upper eyelid ectropion, no trichiasis, and no eyelid closure abnormality after the operation. Conclusion The medium- or small-sized defects of the eyelid and periorbital skin can be successfully repaired by the upper eyelid orbicularis oculi myocutaneous island flap, with a favorable cosmetic effect and concealed donor areas.

Key words: Skin neoplasms, Reconstructive surgical procedures, Surgical flaps, Eyelids, Orbit, Orbicularis oculi, Island flaps