Anatomy of the lateral femoral cutaneous nerve related to inguinal ligament, adjacent bony landmarks, and femoral artery

2008 ◽  
Vol 21 (8) ◽  
pp. 769-774 ◽  
Author(s):  
Porames Doklamyai ◽  
Sithiporn Agthong ◽  
Vilai Chentanez ◽  
Thanasil Huanmanop ◽  
Chavarin Amarase ◽  
...  
Keyword(s):  
Femoral Artery ◽  
Cutaneous Nerve ◽  
Lateral Femoral Cutaneous Nerve ◽  
Inguinal Ligament ◽  
Bony Landmarks ◽  
Femoral Cutaneous Nerve

Ultrasound guided lateral femoral cutaneous nerve block: An evaluation of a sub-inguinal ligament approach

2008 ◽  
Vol 25 (Sup 44) ◽  
pp. 111 ◽  
Author(s):  
K. Hara ◽  
S. Sakura ◽  
T. Nomura ◽  
J. Ota ◽  
S. Tadenuma
Keyword(s):  
Nerve Block ◽  
Cutaneous Nerve ◽  
Lateral Femoral Cutaneous Nerve ◽  
Inguinal Ligament ◽  
Ultrasound Guided ◽  
Femoral Cutaneous Nerve

scholarly journals Ultrasound-Guided Injections at the Lateral Femoral Cutaneous Nerve: The Inguinal Ligament as a Barrier

2020 ◽  
Vol 4;23 (7;4) ◽  
pp. E363-E367
Author(s):  
Stefan Meng
Keyword(s):  
Symptom Relief ◽  
Correct Diagnosis ◽  
Cadaver Study ◽  
Cutaneous Nerve ◽  
Lateral Femoral Cutaneous Nerve ◽  
Inguinal Ligament ◽  
Failure Rates ◽  
Ultrasound Guided ◽  
Meralgia Paresthetica ◽  
Femoral Cutaneous Nerve

Background: Ultrasound-guided perineural injections at the lateral femoral cutaneous nerve (LFCN) may confirm the correct diagnosis and provide symptom relief in meralgia paresthetica. Although correct visualization of the nerve is generally described as feasible, failure rates of the procedure may be as high as 30%. Objectives: This study investigated the spread of injected fluids in ultrasound-guided perineural injections at the LFCN. The aim of the study was to evaluate whether the inguinal ligament impedes the distribution of injected fluids along the course of the LFCN. Study Design: We used a descriptive research design. Setting: Research was conducted at an anatomical research facility. Methods: In fresh, nonembalmed cadavers, 2 mL of ink were injected with ultrasound-guidance at the LFCN below the inguinal ligament. The course of the nerve was then dissected to show the extent of nerve staining. Results: Spread of the injected ink proximal to the inguinal ligament was found in 67.65% of specimens, while the ink did not pass the inguinal ligament in 32.35%. Concerning proximal spread, specimen body mass index was not of any relevance. Limitations: This cadaver study is only a simulation of the real clinical setting and does not allow any insight into the efficacy of the injection in living patients. Conclusions: The inguinal ligament is a barrier in the distribution of injected fluids in about onethird of specimens. This might be a major cause of failure in ultrasound-guided injections. The results from our study are in line with previously published failure rates and our findings might provide the anatomic basis to advance injection techniques. Key words: Cadaver study; injection; lateral femoral cutaneous nerve; LFCN; meralgia paresthetica; nerve entrapment; sonography; ultrasound

scholarly journals Microanatomy Of The Lateral Femoral Cutaneous Nerve In Relation To Inguinal Ligament

2011 ◽  
Vol 25 (S1) ◽  
Author(s):  
Marx Sadacharan Chakravarthy ◽  
Antony Sylvan D'Souza ◽  
Marx Chakravarthy Anitha
Keyword(s):  
Cutaneous Nerve ◽  
Lateral Femoral Cutaneous Nerve ◽  
Inguinal Ligament ◽  
Femoral Cutaneous Nerve

scholarly journals Relationships of the Lateral Femoral Cutaneous Nerve to Bony Landmarks

2011 ◽  
Vol 469 (9) ◽  
pp. 2605-2611 ◽  
Author(s):  
Mehmet Üzel ◽  
Salih Murat Akkin ◽  
Ercan Tanyeli ◽  
Jürgen Koebke
Keyword(s):  
Cutaneous Nerve ◽  
Lateral Femoral Cutaneous Nerve ◽  
Bony Landmarks ◽  
Femoral Cutaneous Nerve

scholarly journals Ultrasound-Guided Diagnosis and Treatment of Meralgia Paresthetica

2016 ◽  
Vol 4;19 (4;5) ◽  
pp. E667-E669
Author(s):  
Ayse Merve Ata
Keyword(s):  
Sensory Nerve ◽  
Psoas Muscle ◽  
Cutaneous Nerve ◽  
Lateral Femoral Cutaneous Nerve ◽  
Inguinal Ligament ◽  
Leg Length ◽  
External Compression ◽  
Meralgia Paresthetica ◽  
Prolonged Standing ◽  
Femoral Cutaneous Nerve

Meralgia paresthetica refers to the entrapment of the lateral femoral cutaneous nerve at the level of the inguinal ligament. The lateral femoral cutaneous nerve – a purely sensory nerve – arises from the L2 and L3 spinal nerve roots, travels downward lateral to the psoas muscle, and then crosses the iliacus muscle. Close to the anterior superior iliac spine, the nerve courses in contact with the lateral aspect of the inguinal ligament and eventually innervates the lateral thigh. The entrapment syndrome is usually idiopathic but can also ensue due to trauma/ overuse, pelvic and retroperitoneal tumors, stretching of the nerve due to prolonged leg/trunk hyperextension, leg length discrepancies, prolonged standing, external compression by belts, weight gain, and tight clothing. The diagnosis of Meralgia paresthetica is usually clinical, i.e., based on the following symptoms: paresthesia, numbness, burning sensation, dysesthesia, and pain over the anterolateral aspects of the thigh. These complaints may be worsened by walking or prolonged standing and typically disappear after weight loss, abdominal muscle strengthening, or elimination of the underlying cause. Although there are several reports on the confirmatory role of electrodiagnostic studies in the diagnosis of Meralgia paresthetica, electromyographers would usually prefer/suggest not to perform nerve conduction studies in daily clinical practice. Herewith, due to its several advantages, ultrasound imaging has been proposed as an alternative diagnostic method in the recent literature. It not only confirms the entrapment morphologically, but also uncovers a likely underlying cause and provides immediate interventional guidance. The pertinent sonographic findings would be hypoechoic and swollen lateral femoral cutaneous nerve. Key words: Meralgia paresthetica, ultrasound, diagnosis, treatment

Harvesting Split-thickness Skin Grafts with Lateral Femoral Cutaneous Nerve Block

2004 ◽  
Vol 66 (6) ◽  
pp. 612-614
Author(s):  
Yukiko TERAMOTO ◽  
Makoto ICHIMIYA ◽  
Yuko TAKITA ◽  
Yoshiaki YOSHIKAWA ◽  
Masahiko MUTO
Keyword(s):  
Nerve Block ◽  
Cutaneous Nerve ◽  
Lateral Femoral Cutaneous Nerve ◽  
Skin Grafts ◽  
Thickness Skin ◽  
Femoral Cutaneous Nerve

The lateral femoral cutaneous nerve canal

2017 ◽  
Vol 126 (3) ◽  
pp. 972-978 ◽  
Author(s):  
Amgad Hanna
Keyword(s):  
Iliac Crest ◽  
Intraoperative Imaging ◽  
Femoral Nerve ◽  
Anatomical Variations ◽  
Cutaneous Nerve ◽  
Lateral Femoral Cutaneous Nerve ◽  
Nerve Transection ◽  
Meralgia Paresthetica ◽  
Anterolateral Thigh ◽  
Femoral Cutaneous Nerve

OBJECTIVE Meralgia paresthetica causes dysesthesias and burning in the anterolateral thigh. Surgical treatment includes nerve transection or decompression. Finding the nerve in surgery is very challenging. The author conducted a cadaveric study to better understand the variations in the anatomy of the lateral femoral cutaneous nerve (LFCN). METHODS Twenty embalmed cadavers were used for this study. The author studied the LFCN's relationship to different fascial planes, and the distance from the anterior superior iliac spine (ASIS). RESULTS A complete fascial canal was found to surround the nerve completely in all specimens. The canal starts at the inguinal ligament proximally and follows the nerve beyond its terminal branches. The nerve could be anywhere from 6.5 cm medial to the ASIS to 6 cm lateral to the ASIS. In the latter case, the nerve may lodge in a groove in the iliac crest. Other anatomical variations found were the LFCN arising from the femoral nerve, and a duplicated nerve. A thick nerve was found in 1 case in which it was riding over the ASIS. CONCLUSIONS The variability in the course of the LFCN can create difficulty in surgical exposure. The newly defined LFCN canal renders exposure even more challenging. This calls for high-resolution pre- or intraoperative imaging for better localization of the nerve.

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