Paper clip stab wounds: four case reports.

Four prisoners recently evaluated at a county hospital sustained self-inflicted paper clip stab wounds of the abdomen on 22 occasions. Guidelines for management based on physical examination, abdominal films and wound exploration with paper clip extraction and short-term admission for observation have been successful in avoiding laparotomy in most instances. Evaluation and surgical treatment of penetrating abdominal injuries are controversial. Some authors propose mandatory laparotomy for all stab wounds violating the peritoneum, while others recommend selective management based on physical findings, local exploration of the wound and subsequent peritoneal lavage. Recently, four prisoners have inserted sharpened paper clips into and through the abdominal wall on 22 occasions, raising questions about the appropriate treatment of these injuries. These wounds differ from other stab wounds in several respects: 1) underlying psychiatric disturbances and the self-inflicted nature of the wound increase the difficulty of patient management; 2) attempts are often multiple, precluding repeated peritoneal lavage for evaluation; 3) the foreign body may be completely intraperitoneal; and 4) peritoneal penetration is similar to that incurred during a peritoneal tap with an 18-gauge needle. The differing presentations of these patients are reported, and a plan for management of these injuries is proposed.