42-year-old patient referred to the Colombian Pain Institute (INCODOL) with 11 months of neuropathic pain rated on the visual analogue scale (VAS) 10/10 and allodynia in the left groin, following an ipsilateral inguinal herniorrhaphy, irradiation to the testicle and thigh, managed with acetaminophen. Staggered and multimodal pharmacological treatment was started with antiepileptics, opioids, lidocaine patches, tricyclic and dual antidepressants, in appropriate doses and schedules, with no improvement of at least 50% after two months of follow-up, and it was decided to perform an ultrasound-guided block of the left ilioinguinal, iliohypogastric and genitofemoral nerves with local anaesthetic associated with steroid. Four months later, the pain was rated 8/10, with aggravation on movement, hypersensitivity in the left inguinoscrotal region, positive cremasteric reflex, negative percussion on the anterosuperior iliac spine, and a new block was performed, with which the patient reported an improvement of more than 50%. In view of this evolution, it was decided to perform a pulsed radiofrequency with a 10 mm active tip cannula on the left ilioinguinal, iliohypogastric and genitofemoral nerves, after a positive sensitive test at 0.2 mV, with the following parameters: 2 Hz, active phase of 20 milliseconds, temperature control < 42oC, for 10 minutes, also applying a local anaesthetic and steroid on each nerve. At one week the pain was rated 2/10; at one month it was rated 1/10, with no adverse effects, and she returned to her work and family activities. Sustained improvement in the controls at 6 and 9 months (VAS 2-3/10).

