To analyze the clinical results of one-stage bridge repair of abdominal wall defect after extended resection of abdominal wall tumor.

This study retrospectively analyzed the clinical data of 69 patients who underwent extended resection of abdominal wall tumors and one-stage bridging repair by the same team in Huadong Hospital Affiliated to Fudan University and Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University from January 2016 to December 2022. According to the surgical method, they were divided into two groups. Among them, 45 cases were repaired with synthetic non-absorbable materials and biological materials double-layer bridging repair, and 24 cases were repaired with biological materials single-layer bridging repair. The main outcome measures were the incidence of postoperative hernia and abdominal wall bulge rate, etc. The secondary outcome measures were the postoperative hospital stay, drainage days, drainage volume at 7 days and incision related complications.

The operation was successfully completed in both groups, and there was no intraoperative death. There were mainly I-II grade defects in the double-layer repair group, and III-IV grade defects in the single-layer repair group. In the double-layer repair group, the incidence of hernia/abdominal wall bulge was 15.6%, and the incidence of incision related complications was 17.8%, which were significantly better than in the single-layer repair group(83.3% and 58.3%).

The use of double-layer mesh in bridging repair of abdominal wall defect after extended resection of abdominal wall tumor can effectively reduce the incidence of postoperative hernia/abdominal wall bulge and incision-related complications. However, for infection and contamination, biological mesh is still needed for bridging repair.