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SNS works by electrically stimulating sacral nerves. The patient is fitted with battery device - like a little pacemaker - under the skin in the lower part of the back.
Comparison of direct bladder and sacral nerve stimulation in spinal cats.
InterStim uses a small device to deliver mild electrical pulses to the sacral nerves that influence the behavior of the bladder, sphincter, and pelvic floor muscles.
The lower division of the fourth lumbar nerve joins the fifth, and the lumbosacral trunk thus formed becomes part of the sacral plexus, which includes the first four sacral nerves. The branches then supply pelvic and gluteal structures and lower limbs.
Midline sacral screws have a risk for impinging on sacral nerves. Pedicular screw and hook placement have a risk for protrusion into the sacral skin.
We present a novel, transdermal amplitude-modulated signal (TAMS) that enables non-invasive stimulation of sacral nerves in a spinal cord injury (SCI) rodent model.
The stimulation is carried to the sacral nerves that control bladder function.
These 98 patients were randomized to undergo either standard medical therapy or surgical implantation of the device, which sends mild electrical pulses to the sacral nerves in the lower back that influence bladder function.