C-arm guided Pudendal Nerve Block

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This article is simply saying that they used a mobile x-ray machine for the guided block (here is a link for this type of x-ray http://www.ziehm-imaging.de/us/ ). Also, the patient is lying face down while the practitioner goes in through the butt - using the ischial spine as the landmark area for the Pudendal Nerve branch. I had two rounds of bilateral (both the right & left sides were injected) guided Pudendal Nerve Blocks. C-arm-guided pudendal nerve block: a new technique.Choi SS, Lee PB, Kim YC, Kim HJ, Lee SCInt J Clin Pract. 2006 May:60(5):553-6Pudendal nerve block (PNB) is an effective diagnostic and/or treatment method for perineal pain. Various approach techniques, such as transperineal, transvaginal, computerised tomography (CT)-

or sonoguided approach, have been suggested for this block. However, they have some limitations, such as highcost, difficulty to perform in practice, inaccurate and unreliable results and inconvenience. To overcome these limitations, we first tried C-arm-guided approach for accomplishing PNB in the prone position. Under the optimal ischial spine view of C-arm fluoroscopy, the block needle was placed on the tip of theischial spine. Then a mixed solution for the block was administered. All of the 25 patients enrolled in this study were blocked successfully using this method. No side-effects or complications were observed in relation to the block. We concluded that the C-arm-guided approach for PNB is an effective alternative tothe existing techniques, which can overcome their limitations.