Ilioinguinal Nerve Block


  • Postoperative Lower abdominal/Groin Pain
  • Post Cesarean Section Pain
  • Post Inguinal Hernia Repair
  • Somatic pain
  • Neuralgia
  • Postoperative lower abdominal/groin pain (acute and chronic), post c-section pain, post inguinal hernia repair, somatic abdominal pain

Ultrasound Technique

  • Draw line from ASIS to Umbilicus
  • Place Probe on line
  • Angle probe towards the posterior lateral direction
  • Doppler for Vasculature as Nerve is in this plane
  • Perforate Internal and External Oblique


  • 4-7ml of Bupivicaine 0.25% or Ropivicaine 0.5% 
  • Consider Depomedrol or Dexamethasone if Chronic Pain or Inflammatory Component
  • Injecting higher volumes may predispose to a femoral nerve block


  • Vascular injection 
  • Nerve injury
  • Bowel perforation
  • Hematoma
  • Femoral nerve block

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  • Kulacoglu H, Ergul Z, Esmer AF, Sen T, Akkaya T, Elhan A. Percutaneous ilioinguinal-iliohypogastric nerve block or step-by-step local infiltration anesthesia for inguinal hernia repair: what cadaveric dissection says? J Korean Surg Soc. 2011 Dec;81(6):408-13. doi: 10.4174/jkss.2011.81.6.408. Epub 2011 Nov 25. PMID: 22200042; PMCID: PMC3243858.
  • Waldman SD (2015) Chapter 86 – Ilioinguinal Nerve Block. In: Atlas of Interventional Pain Management (4thedn), W.B. Saunders, Philadelphia, 431-434.
  • Mirjalili SA (2015) Chapter 45 - Anatomy of the Lumbar Plexus. In: Nerves and Nerve Injuries, edited by Tubbs RS, Rizk E, Shoja M, Loukas M, Barbaro N, et al. (Eds.), Academic Press, San Diego, 609-617.
  • Eichenberger U, Greher M, Kirchmair L, Curatolo M, Moriggl B (2006) Ultrasound-guided blocks of the ilioinguinal and iliohypogastric nerve: accuracy of a selective new technique confirmed by anatomical dissection. Br J Anaesth 97: 238-243. 


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