What is cruralgia?
Cruralgia is a condition characterised by radiating pain along the crural nerve, also known as the femoral nerve. This pain generally starts in the lower back and spreads down the front of the thigh, sometimes as far as the knee or foot.
What causes cruralgia?
Cruralgia is often caused by compression or irritation of the crural nerve. The most common causes are
- Lumbar disc herniation: Part of the intervertebral disc moves out of place and compresses the nerve.
- Lumbar stenosis: A narrowing of the lumbar canal compresses the nerve roots, including the crural nerve.
- Psoas syndrome: Inflammation of the psoas muscle can compress the crural nerve.
- Trauma: A shock or fall can damage the nerve.
What are the symptoms?
The symptoms of cruralgia can vary from person to person, but the most common are :
- Pain: A sharp, stabbing pain along the front of the thigh, which may worsen with certain movements.
- Numbness: A tingling or numb sensation in the area innervated by the crural nerve.
- Muscle weakness: A decrease in muscle strength in the thigh.
How is cruralgia diagnosed?
Cruralgia is diagnosed by a doctor. It is based on :
- Clinical examination: The doctor will look for the painful area and carry out tests to assess muscle mobility and strength.
- Complementary examinations: Imaging tests, such as an MRI or CT scan, may be carried out to confirm the diagnosis and identify the cause of the nerve compression.
What is the treatment?
Treatment for cruralgia depends on the cause and severity of the symptoms. It may include :
- Medication: Non-steroidal anti-inflammatory drugs (NSAIDs) and muscle relaxants can help relieve pain.
- Physiotherapy: Specific exercises can strengthen back muscles and improve mobility.
- Infiltrations: Corticosteroid injections can reduce inflammation and relieve pain.
- Surgery: In the most serious cases, surgery may be required to decompress the nerve.
How can cruralgia be prevented?
To prevent cruralgia, it is advisable to :
- Maintain good posture: Avoid sitting or standing in the same position for too long.
- Strengthen your back muscles: Do strengthening exercises regularly.
- Watch your weight: Excess weight can increase pressure on the lower back.
- Wear comfortable shoes: Appropriate footwear can help reduce pain in the feet and legs.
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