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KEY FACTS
Terminology
Preprocedure
Procedure
Post Procedure
Outcomes
TERMINOLOGY
Abbreviations
- Ilioinguinal nerve (II-N)
- Iliohypogastric nerve (IH-N)
- External oblique muscle (EOM)
- Internal oblique muscle (IOM)
- Transversus abdominis muscle (TAM)
- Transversus abdominis plane (TAP)
- Anterior superior iliac spine (ASIS)
- Iliac crest (IC)
Synonyms
- Ilioinguinal-Iliohypogastric nerve block
Definitions
- IH-N and II-N arise from anterior division of ventral rami of T12-L1 and L1, respectively
- Pierce psoas muscle medially and emerge from its lateral border
- They travel anterior to quadratus lumborum (QL) muscle, deep to transversalis fascia, then in deep aspect of TAM
- IH-N is larger and located cephalad to II-N as they course abdominal wall
- Both nerves pierce TAM posterior to anterior IC (ASIS) to enter TAP
- TAP is fascial plane between TAM and IOM
- TAP blocks can block these nerves
- Ascending branch of deep circumflex iliac artery travels in this plane and is used as landmark for plane
- II-N and IH-N provide sensory innervation to skin of lower abdominal wall, upper hip, and upper thigh
- Note: Fascial plane between TAM and transversalis fascia is in continuity with space around femoral nerve (FN)
- IH-N and II-N arise from anterior division of ventral rami of T12-L1 and L1, respectively
PREPROCEDURE
Indications
Contraindications
Getting Started
PROCEDURE
Patient Position/Location
Equipment Preparation
Procedure Steps
Findings and Reporting
Alternative Procedures/Therapies
POST PROCEDURE
Expected Outcome
Things to Do
Things to Avoid
OUTCOMES
Problems
Complications
Selected References
- Bhatia N et al: Postoperative analgesic efficacy of ultrasound-guided ilioinguinal-iliohypogastric nerve block compared with medial transverse abdominis plane block in inguinal hernia repair: a prospective, randomised trial. Anaesth Crit Care Pain Med. 38(1):41-5, 2019
- Lee KS et al: Ultrasound-guided microwave ablation for the management of inguinal neuralgia: a preliminary study with 1-year follow-up. J Vasc Interv Radiol. 30(2):242-8, 2019
- Choudhary J et al: Transversalis fascia plane block for the treatment of chronic postherniorrhaphy inguinal pain: a case report. A A Pract. 11(3):57-9, 2018
- Kale A et al: Selective spinal nerve block in ilioinguinal, iliohypogastric and genitofemoral neuralgia. Turk Neurosurg. 29(4):530-237, 2018
- Chin KJ et al: Essentials of our current understanding: abdominal wall blocks. Reg Anesth Pain Med. 42(2):133-83, 2017
- Abrahams M et al: Update on ultrasound for truncal blocks: a review of the evidence. Reg Anesth Pain Med. 41(2):275-88, 2016
- Wadhwa V et al: CT-guided perineural injections for chronic pelvic pain. Radiographics. 36(5):1408-25, 2016
- Tagliafico A et al: Anatomical study of the iliohypogastric, ilioinguinal, and genitofemoral nerves using high-resolution ultrasound. Muscle Nerve. 51(1):42-8, 2015
- Klaassen Z et al: Anatomy of the ilioinguinal and iliohypogastric nerves with observations of their spinal nerve contributions. Clin Anat. 24(4):454-61, 2011
- Ndiaye A et al: Emergence and distribution of the ilioinguinal nerve in the inguinal region: applications to the ilioinguinal anaesthetic block (about 100 dissections). Surg Radiol Anat. 32(1):55-62, 2010
- Eichenberger U et al: Ultrasound-guided blocks of the ilioinguinal and iliohypogastric nerve: accuracy of a selective new technique confirmed by anatomical dissection. Br J Anaesth. 97(2):238-43, 2006
- Bell EA et al: Iliohypogastric-ilioinguinal peripheral nerve block for post-cesarean delivery analgesia decreases morphine use but not opioid-related side effects. Can J Anaesth. 49(7):694-700, 2002
- Vaisman J: Pelvic hematoma after an ilioinguinal nerve block for orchialgia. Anesth Analg. 92(4):1048-9, 2001
- Jöhr M et al: Colonic puncture during ilioinguinal nerve block in a child. Anesth Analg. 88(5):1051-2, 1999
- Reed RA et al: Effect of chain unsaturation on the structure and thermotropic properties of galactocerebrosides. Biophys J. 55(2):281-92, 1989
Related Anatomy
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References
Tables
Tables
KEY FACTS
Terminology
Preprocedure
Procedure
Post Procedure
Outcomes
TERMINOLOGY
Abbreviations
- Ilioinguinal nerve (II-N)
- Iliohypogastric nerve (IH-N)
- External oblique muscle (EOM)
- Internal oblique muscle (IOM)
- Transversus abdominis muscle (TAM)
- Transversus abdominis plane (TAP)
- Anterior superior iliac spine (ASIS)
- Iliac crest (IC)
Synonyms
- Ilioinguinal-Iliohypogastric nerve block
Definitions
- IH-N and II-N arise from anterior division of ventral rami of T12-L1 and L1, respectively
- Pierce psoas muscle medially and emerge from its lateral border
- They travel anterior to quadratus lumborum (QL) muscle, deep to transversalis fascia, then in deep aspect of TAM
- IH-N is larger and located cephalad to II-N as they course abdominal wall
- Both nerves pierce TAM posterior to anterior IC (ASIS) to enter TAP
- TAP is fascial plane between TAM and IOM
- TAP blocks can block these nerves
- Ascending branch of deep circumflex iliac artery travels in this plane and is used as landmark for plane
- II-N and IH-N provide sensory innervation to skin of lower abdominal wall, upper hip, and upper thigh
- Note: Fascial plane between TAM and transversalis fascia is in continuity with space around femoral nerve (FN)
- IH-N and II-N arise from anterior division of ventral rami of T12-L1 and L1, respectively
PREPROCEDURE
Indications
Contraindications
Getting Started
PROCEDURE
Patient Position/Location
Equipment Preparation
Procedure Steps
Findings and Reporting
Alternative Procedures/Therapies
POST PROCEDURE
Expected Outcome
Things to Do
Things to Avoid
OUTCOMES
Problems
Complications
Selected References
- Bhatia N et al: Postoperative analgesic efficacy of ultrasound-guided ilioinguinal-iliohypogastric nerve block compared with medial transverse abdominis plane block in inguinal hernia repair: a prospective, randomised trial. Anaesth Crit Care Pain Med. 38(1):41-5, 2019
- Lee KS et al: Ultrasound-guided microwave ablation for the management of inguinal neuralgia: a preliminary study with 1-year follow-up. J Vasc Interv Radiol. 30(2):242-8, 2019
- Choudhary J et al: Transversalis fascia plane block for the treatment of chronic postherniorrhaphy inguinal pain: a case report. A A Pract. 11(3):57-9, 2018
- Kale A et al: Selective spinal nerve block in ilioinguinal, iliohypogastric and genitofemoral neuralgia. Turk Neurosurg. 29(4):530-237, 2018
- Chin KJ et al: Essentials of our current understanding: abdominal wall blocks. Reg Anesth Pain Med. 42(2):133-83, 2017
- Abrahams M et al: Update on ultrasound for truncal blocks: a review of the evidence. Reg Anesth Pain Med. 41(2):275-88, 2016
- Wadhwa V et al: CT-guided perineural injections for chronic pelvic pain. Radiographics. 36(5):1408-25, 2016
- Tagliafico A et al: Anatomical study of the iliohypogastric, ilioinguinal, and genitofemoral nerves using high-resolution ultrasound. Muscle Nerve. 51(1):42-8, 2015
- Klaassen Z et al: Anatomy of the ilioinguinal and iliohypogastric nerves with observations of their spinal nerve contributions. Clin Anat. 24(4):454-61, 2011
- Ndiaye A et al: Emergence and distribution of the ilioinguinal nerve in the inguinal region: applications to the ilioinguinal anaesthetic block (about 100 dissections). Surg Radiol Anat. 32(1):55-62, 2010
- Eichenberger U et al: Ultrasound-guided blocks of the ilioinguinal and iliohypogastric nerve: accuracy of a selective new technique confirmed by anatomical dissection. Br J Anaesth. 97(2):238-43, 2006
- Bell EA et al: Iliohypogastric-ilioinguinal peripheral nerve block for post-cesarean delivery analgesia decreases morphine use but not opioid-related side effects. Can J Anaesth. 49(7):694-700, 2002
- Vaisman J: Pelvic hematoma after an ilioinguinal nerve block for orchialgia. Anesth Analg. 92(4):1048-9, 2001
- Jöhr M et al: Colonic puncture during ilioinguinal nerve block in a child. Anesth Analg. 88(5):1051-2, 1999
- Reed RA et al: Effect of chain unsaturation on the structure and thermotropic properties of galactocerebrosides. Biophys J. 55(2):281-92, 1989
