Usage of full-thickness Keystone flap procedure in anterior abdominal wall reconstruction (case report)

Abstract

The postoperative eventration is one of the severe complications of abdominal oncological surgery, which complicates of postoperative course and leads to long‑term inpatient treatment, repeated surgery and forming laparostoma, filled with hypertrophic granulations. In spite of the numerous of surgical methods proposed for anterior abdominal wall wound closure in such patients, the anterior abdominal wall reconstructive operations keep to stay the difficult and unresolved challenge for abdominal surgery.The aim — to improve the outcomes of surgical treatment of severe patients with postoperative anterior abdominal wall defects (eventration) with full‑thickness Keystone flap procedure.The case report of the closing of anterior abdominal wall defect after chemotherapy complicated by intestinal bleeding, perforation, peritonitis, repeated operations has described in the article. The possibility of the successful multimodal reconstruction of anterior abdominal wall defects in oncology patient with using perforating vessels flap has demonstrated in the case report. The identification of perforating vessels with satisfactory tissue perfusion of Keystone flap with using of combine method (infrared thermometry and Doppler velocimetry) had been conducted in the preoperative period. The surgical debridement of the anterior abdominal wall, wound cavitation with low‑frequent ultrasound, wound closure with Keystone flap had been performed as the first stage of treatment. The midline laparotomy, the adhesiolysis, the sanitation and drainage of intestinal interloop abscesses, the right‑side hemicolectomy had been conducted as the second treatment step. The third stage of the surgery was closing of the midline laparostoma by means of the repeated surgical debridements of the anterior abdominal wall wound, the wound plastic with Keystone flap formed from the soft tissue of chest anterior wall.Conclusions. The successful closure of anterior abdominal wall eventration with forming laparostoma filled by hypertrophic granulations must be based on dynamic control approach of soft tissue perfusion of anterior abdominal wall.