Ten children with a major parietal defect, abdominal or thoracic, were operated by using a resorbable polyglactine network, during these three last years. On six children, the parietal defect was only deep, according to the surgical ablation of a parietal malignant tumor; on four other children, the defect was total, interesting the muscular and aponeurotic plan, but also the skin (two gastroschisis, and two septic eviscerations). Neither reject nor suppuration were observed. In case of total defect, a parietal reflection may be necessary in the long term.