A 50-year-old woman who has had a hysterectomy undergoes an exploratory laparotomy with extensive lysis of adhesions for a small bowel obstruction. She has an uneventful postoperative course and is discharged. She presents to your clinic 2 weeks later with an apparent midline wound infection and skin separation. Local wound care is initiated to include damp to dry dressings twice daily. One week later, the patient presents with bilious drainage from the wound. Physical examination demonstrates small bowel mucosa extruding from the upper portion of the wound. What is the best next step in management?