Sometimes complicated cases of incontinence require implantation of a device known as an artificial urinary sphincter. People who might benefit from this treatment include those who are incontinent after surgery for prostate cancer or stress incontinence, trauma victims and people with congenital defects in the urinary system. The artificial sphincter has three components, including a pump, balloon reservoir, and a cuff that encircles the urethra and prevents urine from leaking out. The cuff is connected to the pump, which is surgically implanted in the scrotum (in men) or labia (in women). The pump can be activated (usually by squeezing or pressing a button) to deflate the cuff and permit the bladder to empty. After a brief interval, the cuff refills itself and the urethra is again closed. Because the artificial sphincter is an implant, it is subject to the risks common to implants, such as infection, erosion (breaking down of tissue) and mechanical malfunction. Yet with appropriate pre-surgical evaluation, operative techniques and postoperative follow-up, many problems can be avoided and incontinent patients can experience an improved quality of life with this device.
