InterStim is a brand of neuromodulation devices that are used to treat urinary and bowel incontinence, as well as other conditions such as chronic pelvic pain and fecal incontinence. InterStim devices use electrical stimulation to help normalize the activity of the muscles and nerves in the pelvic area. The devices are typically implanted in the lower back or buttocks and are controlled by a handheld remote. InterStim devices are designed to be minimally invasive and reversible, meaning that they can be removed if necessary.
There are two main types of InterStim devices: InterStim II, which is used to treat urinary and bowel incontinence, and InterStim III, which is used to treat chronic pelvic pain. InterStim II works by stimulating the sacral nerves, which control the bladder and bowel muscles. InterStim III works by stimulating the dorsal root ganglion, which is a group of nerve cells located near the spine. Both types of InterStim devices are typically used as a treatment option after other methods, such as medication and physical therapy, have failed to provide relief.