Many problems require solving in treatment of avulsion injuries to children's feet, often involving tendons, bones, and joints. Few cases have satisfactory results because the soft-tissue defects are too extensive to reconstruct by conventional methods. Microvascular free flaps were utilized to cover such defects in seven children's feet and satisfactory results were obtained. The free groin flap is considered the most adequate donor flap for such injuries, since the donor scar is easy to conceal and donor site functional disabilities are minimal.