探讨采用跖背接力皮瓣修复第2趾游离皮瓣供区的临床疗效。

2020年6月至2025年10月，苏州瑞华骨科医院手外科收治符合入选标准的采用第2趾游离皮瓣修复手部创面患者7例，其中男5例，女2例，年龄22~56岁，平均32.6岁。患者第2趾游离皮瓣供区均采用跖背接力皮瓣修复，皮瓣切取面积为2.0 cm×1.5 cm~3.0 cm×2.5 cm，供区直接缝合。术后随访观察跖背接力皮瓣外观、颜色、质地、两点辨别觉及瘢痕增生情况。

术后7例患者跖背接力皮瓣及第2趾游离皮瓣均成活。随访2~14个月，平均7个月，跖背接力皮瓣外观满意，颜色接近健侧，质地柔软，两点辨别觉7~12 mm，平均8.5 mm。足部行走功能良好，趾蹼间无挛缩。

采用跖背接力皮瓣修复第2趾游离皮瓣供区，具有手术操作简单、并发症少、皮瓣成活率高的优点，适合临床推广应用。

To investigate the clinical effect of dorsal metatarsal relay flap in repairing the donor site of the second toe free flap.

From June 2020 to October 2025， 7 patients who met the inclusion criteria and underwent second toe free flap reconstruction for hand wounds were admitted to the Department of Hand Surgery of Suzhou Ruihua Orthopedic Hospital. There were 5 males and 2 females， aged 22 to 56 years， with an average age of 32.6 years. The donor sites of the second toe free flaps in all patients were repaired using dorsal metatarsal relay flaps， the area of the relay flaps ranged from 2.0 cm×1.5 cm~3.0 cm×2.5 cm， and the donor sites of the relay flaps were sutured directly. Postoperative follow-up was performed to evaluate the dorsal metatarsal relay flap in terms of appearance， color， texture， two-point discrimination， and scar hyperplasia.

The dorsal metatarsal relay flaps and second toe free flaps of 7 patients survived after surgery. Postoperative follow-up ranged from 2-14 months， with an average of 7 months. The appearance of the dorsal metatarsal relay flaps were satisfactory， with color close to the contralateral side and soft texture. The two-point discrimination distance was 7-12 mm， with an average of 8.5 mm. The walking function of the foot was good， and there was no contracture between the toe webs.

Repairing the donor site of the second toe free flap using dorsal metatarsal relay flap offers the advantages of simple surgical technique， fewer complications， and high flap survival rate， making it suitable for clinical application.