Case of chronic pain after laparoscopic percutaneous extraperitoneal closure in an adolescent girl with inguinal hernia in which open repair was effective.

Chronic pain after laparoscopic percutaneous extraperitoneal closure is very rare. Here, we report a case of chronic pain after laparoscopic percutaneous extraperitoneal closure in an adolescent patient with inguinal hernia who underwent open repair. A 15-year-old girl was diagnosed with a left indirect inguinal hernia, and laparoscopic percutaneous extraperitoneal closure was performed. However, 6 months later, after strenuous exercise, she developed localized pain around the hernia site. Her pain was well controlled by internal treatment but failed to completely resolve. The pain type was somatic, Tinel's sign was negative, and there was no recurrence of the inguinal hernia. Because she strongly wished to undergo surgery, the Potts procedure with removal of the ligature and excision of the round ligament was performed. Her pain improved after surgery, and further medical treatment was not required. The Potts procedure may be an effective treatment for chronic pain such as in this case.