Peripheral Nerve Injury

Peripheral nerve injury refers to damage to one of the nerves outside the brain and spinal cord, often affecting the arm, wrist or hand. These nerves are responsible for movement, sensation or a combination of both.

Injury can occur suddenly following trauma, such as a cut, stretch or compression, or develop over time due to prolonged pressure on a nerve. The effect depends on the type and severity of the injury.

Symptoms may include numbness, weakness or loss of function in the affected area. In more severe cases, nerve injury can lead to significant loss of movement or sensation if not treated appropriately.

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Diagnosis is based on clinical assessment, including a detailed history and examination of sensation, strength and function.

If required, further investigations may include:

• Nerve conduction studies to assess nerve function
• Ultrasound or MRI to assess the nerve and surrounding structures

These tests help determine the extent of the injury and guide treatment decisions.

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Treatment depends on the type, location and severity of the nerve injury.

Non-surgical treatment may include:

• Observation and monitoring of nerve recovery
• Physiotherapy or hand therapy to maintain movement and strength
• Splinting to support the affected area
• Pain management where appropriate

If the nerve is severely damaged or not recovering, surgical repair or reconstruction may be recommended.

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When surgical treatment is required, the approach depends on the type of nerve injury.

Procedures may include:

• Direct repair of the nerve
• Nerve grafting where a gap is present
• Nerve transfer in more complex cases

The aim of surgery is to restore nerve continuity and improve recovery of function.

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Recovery following nerve injury can take time, as nerves regenerate slowly.

Recovery typically involves:

• Ongoing monitoring of nerve recovery
• Hand therapy to maintain movement and function
• Gradual return to activity
• Protection of the affected area during healing

Recovery timelines vary, and improvement may continue over many months.

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As with any surgical procedure, there are potential risks, although these vary depending on the type of repair performed.

Possible complications include:

• Infection
• Incomplete recovery of nerve function
• Ongoing numbness or weakness
• Nerve pain or sensitivity
• Scar sensitivity
• Need for further procedures

Your surgeon will discuss the expected outcomes and risks before treatment.

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You should seek medical advice if you experience persistent numbness, weakness or loss of function in the hand or arm, particularly if symptoms follow an injury.

Early assessment is important, as timely treatment can improve recovery and reduce the risk of permanent changes.

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