What are the most common nerve injuries?

Nerve compression

Compression occurs when a nerve is pinched or squeezed by surrounding structures. The most common examples include:

Carpal Tunnel Syndrome
The median nerve is compressed at the wrist, causing numbness and tingling in the hand.

Cubital Tunnel Syndrome
The ulnar nerve is compressed at the elbow, affecting the ring and little fingers.

Radiculopathy

Radiculopathy occurs when a nerve root is compressed, inflamed, or damaged as it exits the spinal cord. Common causes include:

• Herniated disc
  
• Spinal osteoarthritis
  
• Spinal Stenosis

Radiculopathy typically causes pain that radiates along the path of the affected nerve. Sciatica (compression of a nerve root in the lower back) and cervicobrachial neuralgia (compression of a nerve root in the neck) are common examples.

Neuropathy

Neuropathy refers to damage or dysfunction of a peripheral nerve. It can affect a single nerve (mononeuropathy) or multiple nerves simultaneously (polyneuropathy).

Diabetic Neuropathy
Diabetes is the most common cause of peripheral neuropathy. Prolonged high blood sugar gradually damages the small blood vessels that supply the nerves, especially in the feet and legs. Symptoms include numbness, tingling, and sometimes a loss of sensation, which increases the risk of undetected injuries¹.

Traumatic Neuropathy
Direct trauma can damage nerves in various ways:

• Bruises from impacts
  
• Excessive stretching (as in some shoulder dislocations)
  
• Partial or complete tears during fractures
  
• Prolonged compression (compartment syndrome)

Chronic Compression Neuropathy
Certain professional activities or postural habits can cause repeated pressure on a nerve. For instance, frequently leaning on your elbows can compress the ulnar nerve, leading to progressive cubital neuropathy.

Nutritional and Metabolic Neuropathies
Vitamin B deficiencies (especially B1, B6, and B12) can affect nerve function. Chronic alcoholism, certain medications (like chemotherapy), and exposure to industrial toxins can also cause neuropathies².

How to recognize nerve damage?

Signs of nerve damage generally appear in this order:

1. Pain

• Radiating pain that follows the nerve's path
  
• Burning sensation or electric shock
  
• Pain that worsens with certain movements or positions

2. Paresthesia

• Numbness
  
• Tingling (pins and needles)
  
• Feeling of "limbs falling asleep"

3. Motor and Sensory Issues

• Muscle weakness
  
• Difficulty performing certain precise movements
  
• Reduced reflexes
  
• Loss of sensation to touch or temperature

Nerve pain often differs from other types of pain due to its radiating nature: it follows the exact path of the affected nerve rather than staying localized to a specific spot.

How does physiotherapy help nerves heal?

Physiotherapy plays an important role in the healing and management of nerve damage. Interventions are based on a deep understanding of neurophysiology and are tailored to each specific condition.

Reducing Pressure on the Nerve

The primary goal is often to reduce compressive forces on the affected nerve:

• Postural Correction: Identifying and modifying postures that cause chronic compression
  
• Ergonomic Modifications: Adjustments to your workstation, home environment, or sports equipment
  
• Positioning Techniques: Teaching resting positions that minimize tension on the nerve
  
• Targeted Muscle Strengthening: Stabilizing structures that may compress the nerve (for example, strengthening deep neck muscles to reduce compression of cervical nerve roots)

Improved Blood Flow

Nerves rely on an adequate blood supply for proper function and healing. Physiotherapy promotes circulation through:

• Joint Mobilizations: Gentle movements that stimulate local blood flow
  
• Adapted Aerobic Exercises: Improving overall circulation
  
• Edema Drainage: Reducing swelling that can compress blood vessels supplying the nerve
  
• Relaxation Techniques: Reducing excessive muscle tension that can compress vascular structures

Restoring Nerve Mobility

Nerves need to be able to slide freely within their anatomical pathways. When this mobility is compromised, physiotherapy uses:

• Neural Gliding Techniques: Specific mobilizations that restore nerve gliding (see next section)
  
• Mechanical Interface Mobilizations: Treating surrounding tissues (muscles, fascia, joints) that may limit nerve movement
  
• Progressive Exercises: Gradually restoring range of motion without causing symptoms

Clinical studies show that neural mobilization techniques significantly improve symptoms in several conditions, including carpal tunnel syndrome and low back pain with radiculopathy⁵.

Pain Management and Education

Nerve pain can be particularly debilitating and difficult to understand:

• Education on the Neurophysiology of Pain: Understanding why and how nerve pain occurs helps patients better manage their symptoms
  
• Coping Strategies: Techniques to maintain daily activities despite symptoms
  
• Progressive Desensitization: Gradual exposure to movements or positions that provoke symptoms, in a controlled setting
  
• Relaxation Techniques: Managing stress that can amplify pain perception

Healing Timeline

Nerves have a capacity for regeneration, but the process is slow. Axons regenerate at a rate of approximately 1 millimeter per day⁶. This means that a nerve compressed at the elbow and needing to regenerate down to the hand (about 30 cm) could require nearly 10 months of recovery.

This healing is generally slower than that of other tissues like tendons or ligaments. Patience and consistency in treatment are essential. Improvements are often gradual, and adhering to the treatment protocol optimizes the chances of full recovery.

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What is Neural Gliding?

Neural gliding (or neural mobilization) is a physiotherapy technique aimed at restoring the normal mobility of nerves.

Two Types of Nerve Mobility

Intraneural Mobility: The nerve slides within its protective sheath
Extraneural Mobility: The nerve sheath slides relative to the surrounding tissues

When a nerve loses its normal mobility (for example, due to adhesions or inflammation), it can cause pain and dysfunction.

Neural gliding techniques

Gliding
This technique involves movements that create a gentle excursion (gliding) of the nerve with minimal stress. It is particularly effective for:

• Improving blood circulation around the nerve
  
• Reducing inflammation
  
• Draining swelling
  
• Decreasing adhesions

Tensioning
This technique applies controlled tension to the nerve to:

• Restoring nerve elasticity
  
• Improving tolerance to movement
  
• Reducing mechanosensitivity (sensitivity to movement)

Clinical Applications

Neural mobilization has proven effective for several conditions:

• Carpal Tunnel Syndrome
  
• Low back pain with a radicular component
  
• Cervicobrachial neuralgia
  
• Lateral epicondylitis (tennis elbow)
  
• Sciatica

Your physiotherapist will first assess the mobility of your nerves using specific tests, then tailor neural gliding techniques to your particular condition. These techniques are generally gentle and progressive, respecting your tolerance and avoiding the worsening of symptoms.

How to prevent nerve problems?

Preventing nerve damage involves several strategies that protect your nerves from compression, injury, and metabolic factors.

Ergonomics and posture at work

Prolonged postures can lead to repeated compression on certain nerves. To protect your nerves:

• Adjust your computer screen height to maintain a neutral neck posture
  
• Use forearm supports to reduce pressure on the carpal tunnel
  
• Avoid crossing your legs for long periods (compression of the fibular nerve)
  
• Regularly alternate between sitting and standing positions if possible

Studies show that ergonomic modifications significantly reduce the incidence of nerve compression syndromes in office workers³.

Mobility and Regular Exercise

Regular movement maintains nerve mobility and promotes blood flow. Nerves need to glide freely during daily movements:

• Incorporate gentle stretches into your daily routine
  
• Avoid prolonged static positions
  
• Perform exercises that use your full joint range of motion
  
• Maintain regular physical activity suited to your condition

Managing Metabolic Factors

Certain metabolic conditions increase the risk of neuropathy:

• Blood Sugar Control: If you have diabetes, good blood sugar control protects your nerves from long-term damage⁴
  
• Adequate Nutrition: Ensure sufficient intake of B vitamins, especially B12
  
• Limit Alcohol: Excessive alcohol consumption can damage peripheral nerves
  
• Hydration: Adequate hydration promotes the health of nerve tissues

Protection Against Injuries

During risky activities:

• Wear appropriate protective gear (knee pads, elbow pads)
  
• Avoid sudden movements and extreme positions
  
• Warm up before intense physical activities
  
• Gradually increase your workout intensity to avoid overexertion

Early Symptom Recognition

Early detection allows for intervention before symptoms become chronic. Consult a professional quickly if you experience:

• Recurrent numbness or tingling
  
• Progressive muscle weakness
  
• Pain that radiates along a limb
  
• Symptoms that persist for more than a few days

When should you see a physical therapist?

Consult a physiotherapist if you experience:

• Radiating pain that follows a specific path (arm, leg)
  
• Persistent numbness or tingling
  
• Progressive muscle weakness
  
• Pain that worsens with certain positions or movements
  
• Symptoms that interfere with your daily activities

Early diagnosis and appropriate treatment often prevent symptoms from becoming chronic and promote optimal recovery.

References

1. Pop-Busui R, Boulton AJ, Feldman EL, et al. Diabetic Neuropathy: A Position Statement by the American Diabetes Association. Diabetes Care. 2017;40(1):136-154. doi:10.2337/dc16-2042

2. Callaghan BC, Price RS, Feldman EL. Distal Symmetric Polyneuropathy: A Review. JAMA. 2015;314(20):2172-2181. doi:10.1001/jama.2015.13611

3. Robertson MM, Amick BC, DeRango K, et al. The effects of an office ergonomics training and chair intervention on worker knowledge, behavior and musculoskeletal risk. Appl Ergon. 2009;40(1):124-135. doi:10.1016/j.apergo.2007.12.009

4. Tesfaye S, Chaturvedi N, Eaton SE, et al. Vascular risk factors and diabetic neuropathy. N Engl J Med. 2005;352(4):341-350. doi:10.1056/NEJMoa032782

5. Basson A, Olivier B, Ellis R, et al. The Effectiveness of Neural Mobilization for Neuromusculoskeletal Conditions: A Systematic Review and Meta-analysis. J Orthop Sports Phys Ther. 2017;47(9):593-615. doi:10.2519/jospt.2017.7117

6. Gordon T. The role of neurotrophic factors in nerve regeneration. Neurosurg Focus. 2009;26(2):E3. doi:10.3171/FOC.2009.26.2.E3

What should you know about nerves?

Nerves are complex and essential structures that ensure communication between your brain and all parts of your body. Understanding how they work, recognizing the signs of nerve damage, and knowing your treatment options allows you to better collaborate with your healthcare team.

Physiotherapy offers effective approaches for treating nerve damage, particularly through neural mobilization techniques. If you experience symptoms suggesting nerve damage, a professional evaluation is recommended to identify the cause and establish an appropriate treatment plan.