The lateral cutaneous nerve of the thigh is a sensory nerve that supplies the skin. It starts off in the lower part of the spinal cord, in the lumbar region. It has to pass over the front of the hip bones and under the inguinal ligament before reaching the thigh. The inguinal ligament is a tough fibrous band in the groin.
Does Meralgia paresthetica ever go away?
MP may go away without treatment after a few weeks or months. Treatment may include physical therapy, medicine, or rarely, surgery. If you need treatment for meralgia paresthetica, it can make your pain or numbness decrease or go away.
What nerve serves the posterior thigh?
The posterior cutaneous nerve of the thigh, also known as the posterior femoral cutaneous nerve, is a sensory nerve derived from the sacral plexus. It supplies the skin of the posterior thigh, buttock, posterior aspect of the scrotum or labia and a variable area of the posterior calf .
What causes severe pain in anterior and lateral of thigh?
What causes thigh pain?
- Musculoskeletal causes. ...
- Blood flow problems. ...
- Nerve injury. ...
- Underlying medical conditions. ...
- Femoral stress fracture. ...
- Thigh pain questionnaire. ...
- Deep vein thrombosis. ...
- Greater trochanteric pain syndrome. ...
- Patellofemoral pain syndrome. ...
Is there a cure for Meralgia paresthetica?
Treatment for meralgia paresthetica is symptomatic and supportive. The majority of cases improve with conservative treatment by wearing looser clothing and losing weight. In a few cases, in which pain is persistent or severe, surgical intervention may be indicated.
What causes pressure on the lateral femoral cutaneous nerve?
The lateral femoral cutaneous nerve, which runs through the pelvis, groin and into the thighs, can become compressed due to swelling, trauma or pressure in the surrounding areas. Common causes of meralgia paresthetica may include: Repetitive motion of the legs. Recent injuries to the hip.
What are the signs and symptoms of lateral femoral cutaneous nerve entrapment?
Meralgia paresthetica (also known as lateral femoral cutaneous nerve entrapment) is a condition characterized by tingling, numbness and burning pain in your outer thigh. It's caused by compression of the nerve that provides sensation to the skin covering your thigh.
How do you treat a lateral femoral cutaneous nerve?
In more severe cases, corticosteroid injections or injectable pain medications may relieve symptoms. Rarely, surgery is necessary to correct any compression on the lateral femoral cutaneous nerve. Surgery is usually only recommended for people who try other treatments but still experience symptoms.
What does the lateral cutaneous nerve of the thigh innervate?
They include the lateral femoral cutaneous nerve (L2-L3), posterior femoral cutaneous nerve (S1–S3) and the anterior femoral cutaneous nerves (L2–L4). The main function of these nerves is to provide cutaneous innervation to most of the skin of the thigh, knee, and proximal leg.
Is walking good for meralgia paresthetica?
Exercising for 30 minutes a day at least three or four times a week should help ease meralgia paresthetica pain. Some exercises to try include: brisk walking.
How do you test the lateral femoral cutaneous nerve?
The Lateral Femoral Cutaneous Nerve bias test includes prone lying with passive hip extension adduction and knee flexion whereas the Sapheneous Nerve bias test includes prone-lying hip extension, abduction and external rotation with knee flexion, ankle dorsiflexion, and eversion.
How do you Untrap the lateral femoral cutaneous nerve?
2:115:14Lateral Femoral Cutaneous Nerve Exercises | Meralgia ParestheticaYouTubeStart of suggested clipEnd of suggested clipPut my right arm. Up turn and bend away. And then release. Forward turn and bend away. And releaseMorePut my right arm. Up turn and bend away. And then release. Forward turn and bend away. And release you can hold this in that position.
What happens if meralgia paresthetica goes untreated?
Left untreated, however, meralgia paresthetica may lead to serious pain or paralysis. Seek prompt medical care for persistent systems of meralgia paresthetica, such as numbness, tingling, or mild pain, as continued compression of the nerve may lead to permanent damage and paralysis.
What are the symptoms of femoral nerve damage?
Signs of femoral neuropathynumbness in any part of the leg (typically the front and inside of the thigh, but potentially all the way down to the feet)tingling in any part of the leg.dull aching pain in the genital region.lower extremity muscle weakness.difficulty extending the knee due to quadriceps weakness.More items...
What is the function of the lateral cutaneous nerve of the thigh?
Function. The lateral cutaneous nerve of the thigh is a sensory nerve. It supplies the skin on the lateral (outer) part of the thigh.
How do you fix meralgia paresthetica?
Meralgia Paresthetica TreatmentHeat, ice, or taking over-the-counter pain relievers like aspirin, acetaminophen, naproxen, or ibuprofen for a few days.Weight loss.Wearing loose-fitting clothing, especially around your upper front hip.
Why is meralgia paresthetica worse at night?
At night our body temperature fluctuates and goes down a bit. Most people tend to sleep in a cooler room as well. The thought is that damaged nerves might interpret the temperature change as pain or tingling, which can heighten the sense of neuropathy.
What nerve supplies the skin on the anterior and lateral sides of the thigh?
Lateral femoral cutaneous nerve. The lateral femoral cutaneous nerve , also known as the lateral cutaneous nerve of the thigh, is a sensory branch of the lumbar plexus arising from the posterior divisions of the anterior rami of L2 and L3 spinal nerves. The nerve supplies the skin on the anterior and lateral aspects of the thigh to the level ...
What nerve is compressed in the lateral femoral area?
Cases of the lateral femoral cu taneous nerve bifurcating within the pelvic cavity have also been documented. meralgia paraesthetica: the lateral cutaneous nerve of the thigh is sometimes compressed as it passes under the inguinal ligament or occasionally where it pierces the fascia lata and may cause pain in the lateral aspect of the thigh;
Where is the lateral femoral nerve located?
The lateral femoral cutaneous nerve, like the femoral nerve, is formed from the posterior divisions of the anterior rami of L2 and L3 spinal nerves. It courses on the anterior surfaces of the iliacus muscle after becoming secured in the fibrous sheath overlying the iliacus muscle, the iliac fascia. The nerve passes under the lateral aspect of the inguinal ligament , in a compartment sometimes called the muscular lacuna, approximately 10-15 mm medial to the ASIS to lie on the anterior surface of the sartorius muscle and deep to the fascia lata. Both the anterior and posterior divisions of the nerve eventually pierce the fascia lata to give terminal cutaneous branches.
Which nerve divides into anterior and posterior branches?
The lateral femoral cutaneous nerve divides into anterior and posterior branches to supply the anterior and posterior aspects of the lateral thigh as far inferiorly as the knee. the posterior branch typically contains all L2 fibers and continues down the posterolateral aspect of the thigh along the iliotibial tract contributing terminal filaments ...
Where does the iliac nerve come from?
The nerve emerges from the lateral border of the psoas major muscle inferior to the iliolumbar ligament and then courses laterally around the iliac fossa on the anterior surface of the iliacus muscle deep to the iliac fascia.
Where does the inguinal ligament pass?
The nerve passes below, or occasionally perforates, the inguinal ligament to enter the thigh within a fibrous compartment just medial to the anterior superior iliac spine, passing over the sartorius deep to the fascia lata where it divides into anterior and posterior branches.
Where does the ASIS nerve pass?
The nerve passes under the lateral aspect of the inguinal ligament , in a compartment sometimes called the muscular lacuna, approximately 10-15 mm medial to the ASIS to lie on the anterior surface of the sartorius muscle and deep to the fascia lata. Both the anterior and posterior divisions of the nerve eventually pierce ...
Which branch of the thigh supplies the skin of the anterior and lateral regions of the thigh to the
The anterior branch supplies the skin of the anterior and lateral regions of the thigh to the knee, while the posterior branch supplies the lateral portion of the thigh, from the greater trochanter in the hip, to mid-thigh, just above the knee.
What causes a tingling sensation in the lateral femoral nerve?
Neuropathies (nerve damage) of the lateral femoral cutaneous nerve can arise from many different clinical situations, and often manifest as sensory loss or pain, which can be tingling, aching, or burning. Common causes of this condition, known as meralgia paresthetica, include tight clothing, obesity, pregnancy, and some spinal or pelvic surgeries. ...
What nerve exits the spinal cord?
Lateral femoral cutaneous nerve. The lateral femoral cutaneous nerve is a branch of the lumbar plexus, exiting the spinal cord between the L2 and L3 vertebrae.
What causes meralgia paresthetica?
Common causes of this condition, known as meralgia paresthetica, include tight clothing, obesity, pregnancy, and some spinal or pelvic surgeries. Treatment is generally conservative and may require minor changes in lifestyle, behavior, or diet.
Where does the psoas muscle emerge?
It emerges at the lateral edge of the psoas muscle group , below the ilioinguinal nerve, and then passes beneath the iliac fascia and the inguinal ligament. It divides into two branches – anterior and posterior – eight to ten centimeters below the spine, where it also emerges from the fascia lata. The anterior branch supplies the skin ...
Where does the lateral femoral cutaneous nerve go?
But in meralgia paresthetica, the lateral femoral cutaneous nerve becomes trapped — often under the inguinal ligament, which runs along your groin from your abdomen to your upper thigh. Common causes of this compression include any condition ...
What causes a pinched nerve in the thigh?
Causes. Meralgia paresthetica occurs when the lateral femoral cutaneous nerve — which supplies sensation to the surface of your outer thigh — becomes compressed, or pinched. The lateral femoral cutaneous nerve is purely a sensory nerve and doesn't affect your ability to use your leg muscles. In most people, this nerve passes through ...
What causes numbness in the upper thigh?
Pressure on the lateral femoral cutaneous nerve, which supplies sensation to your upper thigh, might cause these symptoms of meralgia paresthetica: Tingling and numbness in the outer (lateral) part of your thigh. Burning pain on the surface of the outer part of your thigh. These symptoms commonly occur on one side of your body ...
What is the pain in the upper leg called?
Meralgia paresthetica. Meralgia paresthetica. Meralgia paresthetica is a condition characterized by tingling, numbness and burning pain in the outer part of your thigh. The condition is caused by compression of the lateral femoral cutaneous nerve, which supplies sensation to your upper leg. Meralgia paresthetica is a condition characterized by ...
Why does my thigh hurt?
The cause of meralgia paresthetica is compression of the nerve that supplies sensation to the skin surface of your thigh. Tight clothing, obesity or weight gain, and pregnancy are common causes of meralgia paresthetica.
Why does my groin feel compressed?
Common causes of this compression include any condition that increases pressure on the groin, including: Nerve injury, which can be due to diabetes or seat belt injury after a motor vehicle accident, for example, also can cause meralgia paresthetica.
What are the risks of meralgia paresthetica?
The following might increase your risk of meralgia paresthetica: Extra weight. Being overweight or obese can increase the pressure on your lateral femoral cutaneous nerve. Pregnancy. A growing belly puts added pressure on your groin, through which the lateral femoral cutaneous nerve passes. Diabetes.
FACTS
Indications: Postoperative analgesia for hip surgery, meralgia paresthetica, and muscle biopsy of the proximal lateral thigh
GENERAL CONSIDERATIONS
The lateral femoral cutaneous nerve (LFCN) divides into several branches innervating the lateral and anterior aspects of the thigh. Of note, in 45% of patients, innervation of the LFCN extends even to the anterior thigh. The variable anatomy of the lateral femoral cutaneous nerve makes it challenging to perform an effective landmark-based block.
ULTRASOUND ANATOMY
The LFCN typically is visualized between the tensor fasciae latae muscle (TFLM) and the sartorius muscle (SaM), 1–2 cm medial and inferior to the anterior superior iliac spine (ASIS) and 0.5–1.0 cm deep to the skin surface ( Figure 1 ).
DISTRIBUTION OF ANESTHESIA
Block of the LFCN provides anesthesia or analgesia in the anterolateral thigh. There is a large variation in the area of sensory coverage among individuals because of the highly variable course of the LFCN and its branches ( Figure 2 ).
LANDMARKS AND PATIENT POSITIONING
Block of the LFCN is performed with the patient in the supine or lateral position. Palpation of the anterior superior spine provides the initial landmark for transducer placement; the transducer is first positioned at 2 cm inferior and medial to the ASIS and adjusted accordingly.
GOAL
The goal is to inject local anesthetic in the plane between the TFLM and the SaM, typically 1–2 cm medial and inferior to the ASIS.
TECHNIQUE
With the patient supine, the skin is disinfected and the transducer placed immediately inferior to the ASIS, parallel to the inguinal ligament ( Figure 3 ). The TFLM and SaM are then identified.
What nerve is involved in numbness and burning sensations?
Meralgia paresthetica is a medical condition resulting from compression (pressure on or squeezing) of the lateral femoral cutaneous nerve (LFCN). This large nerve supplies sensation to the front and side of your thigh. Meralgia paresthetica results in sensations of aching, burning, numbness, or stabbing in the thigh area.
How does a nerve conduction study work?
This test evaluates how well your lateral femoral cutaneous nerve sends electrical impulses to the surrounding muscles. To measure electrical impulses, your doctor places electrodes along the LFCN. These electrodes measure how fast the LFCN transmits impulses.
What are the symptoms of meralgia paresthetica?
Many people with meralgia paresthetica experience symptoms including: Pain on the outer thigh, which may extend down to the outer side of the knee. Burning, aching, tingling, stabbing or numbness in the thigh. Symptoms on only one side of the body. Worse pain when your thigh is touched lightly.
What causes a LFCN to compress?
These can include injury to the hip area; medical conditions like obesity, pregnancy, and diabetes; and wearing clothing that is too tight or belts in the waist area.
What is the test for lead in the pelvic area?
A thorough physical examination will be performed including a hands-on test called a pelvic compression test, in which the doctor applies pressure on your thigh to rule out other causes of your symptoms.
Can you get meralgia paresthetica?
Anyone can develop meralgia paresthetica . However, you are more likely to develop this condition if you are: Diabetic. Exposed to lead paint. Injured by your seatbelt during a car accident. Overweight or obese. Pregnant. Recovering from a recent surgery.
Can you get surgery for lateral femoral nerve?
In more severe cases, corticosteroid injections or injectable pain medications may relieve symptoms. Rarely, surgery is necessary to correct any compression on the lateral femoral cutaneous nerve. Surgery is usually only recommended for people who try other treatments but still experience symptoms.
What are the nerves in the thigh?
Among these nerves are the femoral nerve, the lateral cutaneous femoral nerve, the sciatic nerve, and saphenous nerve which perform unique functions from the spinal cord to the legs.
What causes irritation of the lateral femoral cutaneous nerve?
Causes of irritation to the lateral femoral cutaneous nerve: Obesity – Excessive weight causes the tissues of the abdomen to trap the lateral femoral cutaneous nerve under a ligament. Pregnancy – Pregnancy causes the abdominal tissue to compress the nerve. Placing your cell phones in your pockets. Trauma.
What nerve is the largest in the body?
The sciatic nerve also referred to as the largest nerve in the human body, courses from the lower back down the lower extremity. It connects the central nervous system to the lower limbs. Damage to this nerve can lead to sciatic nerve pain and general leg pain.
Why does my thigh hurt?
One of the least common causes of pain in the nerves of the thigh is known as saphenous neuropathy. It occurs as a result of complications from surgery or injuries. Sometimes, it can be caused by patellofemoral disorders, a tear of the medial meniscus or nonspecific synovitis. The probability of saphenous neuropathy arising from natural causes is ...
What is the pain in the thighs?
One of the most popular types of nerve pain that is common in the thighs, is femoral neuropathy, also known as femoral nerve dysfunction. This neurological dysfunction occurs when you experience difficulty in moving your legs as a result of a damaged femoral nerve. An injured femoral nerve results in the difficulty or even inability to walk ...
What supplements can help with neuropathy?
One of the most effective supplements that give the body the right amount of vitamin B12 is Nerve Renew by the Neuropathy Treatment Group.
Why do my thighs feel numb?
Obesity. Diabetes. Pregnancy. Repetitive exercise. Injury or irritation to any of these nerves can cause intense pain, a burning sensation, or numbness in the thighs. Following are some of the health conditions which exhibit nerve pain in the thighs.
Overview
The lateral cutaneous nerve of the thigh (also called the lateral femoral cutaneous nerve) is a cutaneous nerve of the thigh. It originates from the dorsal divisions of the second and third lumbar nerves from the lumbar plexus. It passes under the inguinal ligament to reach the thigh. It supplies sensation to the skin on the lateral part of the thigh by an anterior branch and a posterior branch.
Structure
The lateral cutaneous nerve of the thigh is a nerve of the lumbar plexus. It arises from the dorsal divisions of the second and third lumbar nerves (L2-L3). It passes through psoas major muscle, and emerges from its lateral border. It crosses the iliacus muscle obliquely, toward the anterior superior iliac spine (ASIS). It is crossed by the deep circumflex iliac artery and the deep circumflex iliac vein. It then passes under the inguinal ligament. It passes through the muscular lacuna. It then passes …
Function
The lateral cutaneous nerve of the thigh is a sensory nerve. It supplies the skin on the lateral (outer) part of the thigh.
Clinical significance
The lateral cutaneous nerve of the thigh can be studied using ultrasound. A patient lies on a bed facing upwards (supine). The ultrasound probe is moved along the length of the nerve, often starting from near the ASIS. The nerve is easier to see over the sartorius muscle than in other subcutaneous tissue, as there is greater contrast. It can sometimes be difficult to see due to surrounding soft tissue.
History
The lateral cutaneous nerve of the thigh may also be known as the lateral femoral cutaneous nerve.
Additional images
• Lateral cutaneous nerve of thigh and other structures passing behind the inguinal ligament
• The great saphenous vein and its tributaries at the fossa ovalis.
• The lumbar plexus and its branches.
• Deep and superficial dissection of the lumbar plexus.
See also
• Cutaneous nerve
• Posterior cutaneous nerve of thigh
• Meralgia paraesthetica
External links
• Lateral_femoral_cutaneous_nerve at the Duke University Health System's Orthopedics program
• Anatomy photo:40:17-0201 at the SUNY Downstate Medical Center - "Posterior Abdominal Wall: Nerves of the Lumbar Plexus"
• posteriorabdomen at The Anatomy Lesson by Wesley Norman (Georgetown University) (posteriorabdmus&nerves)