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. 2017 Jun 1;10:109–122. doi: 10.2147/MDER.S115678

Figure 4.

Figure 4

Sacral nerve stimulation with InterStim® device and pelvic anatomy for dorsal genital nerve (DGN) stimulation and percuteneous tibial nerve stimulation.

Notes: (A) A schematic diagram of how sacral nerve stimulation (SNS) works with a tined lead electrode that is placed through sacral foramen S3. The nerve fibers from the posterior tibial nerve are part of the large sciatic nerve that descends from the pelvic region toward the lower extremities. Also the pudendal nerve is shown, which contains the nerve fibers from the DGN, which branches from this nerve and can be used for electrical DGN stimulation. (B) An X-ray of the pelvic region from a patient with an InterStim SNS device with the green arrow pointing at the tined lead. The pulse generator is seen in the upper right corner of the image. (C) An image of an SNS device that was explanted. This was the first SNS device that was implanted in Europe in 1989.

Abbreviations: DGN, dorsal genital nerve; SNS, sacral nerve stimulation.