The Erlangen magnetic ring for colostomy closure was used in 240 patients. Forty-five rings were explanted because of infection, pressure necrosis, parastomal hernia, invagination, prolapse and stenosis. Although continence was obtained in 68% of patients, only 43% of surviving patients are still using the system. Reasons given for not using the cap were pain and weight. Increased use of deep anterior resections and the introduction of irrigation and improved stoma bags have limited the indications for the use of the magnetic ring.