Repair of a perineal hernia with a bladder patch after abdominoperineal resection: A case report and literature review.

Perineal hernia is the protrusion of the intra-abdominal viscera through the pelvic floor. It rarely occurs after abdominoperineal resection but has increasingly occurred after surgical treatment for rectal cancer. A patient was diagnosed as having perineal hernia 10 days after laparoscopic abdominoperineal resection with preoperative radiotherapy and chemotherapy. He presented with epigastric discomfort and perineal wound dehiscence. Perineal hernia was confirmed by computed tomography scan and treated with a semi-emergency surgery. The surgical field was contaminated because of the perineal wound dehiscence. The levator muscle at the pelvic floor was not sufficient, so we used a bladder patch to cover the pelvic inlet. The surgery was performed without any adverse events. To our best knowledge, this is the first case report to present the usefulness of a bladder patch for the treatment of a perineal hernia using a laparoscopic transabdominal approach in emergency situations.