Regional anesthesia and pain medicine
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Different approaches to the obturator nerve have been described. However, few have focused on the injection point inferior the iliopubic ramus, specifically at the exit of the obturator canal. This study aims to anatomically evaluate the ultrasound-guided obturator nerve block at the exit of the obturator canal, detailing anatomical landmarks and solution distribution. ⋯ In conclusion, sagittal approaches using the iliopubic ramus as an anatomical reference achieve the most complete obturator nerve block. Our anatomical study details the structures of the obturator canal and access to the obturator nerve at its exit. Future studies are needed to confirm its safety and efficacy.