Compressive Neuropathies: A Guide to Nerve Entrapments 

Compressive neuropathies — also called nerve entrapments — occur when a nerve is squeezed or irritated along its path. The pressure disrupts normal nerve function, causing pain, tingling, weakness, or numbness in the area the nerve supplies. They’re common in athletes and active people, driven by repetitive movement, poor biomechanics, or muscle tightness.

Nerves travel through narrow tunnels and between muscles and ligaments. When these pathways tighten or become inflamed, the nerve compresses — and, untreated, this leads to chronic irritation, weakened muscle control, and loss of sensation. Dr Masci diagnoses and treats nerve entrapments at his London clinics, with ultrasound-guided assessment, diagnostic nerve blocks, and advanced treatments including hydrodissection. This guide explains how and links to a guide for every individual nerve entrapment.

What are the symptoms of compressive neuropathies?

Symptoms depend on the nerve involved, but most people report tingling, burning, or numbness in the area it innervates. There may be weakness in the linked muscles, reduced grip strength, or clumsy, poorly coordinated movement. Pain often worsens with positions or repetitive actions that stretch or compress the nerve, and in sport, it typically worsens with activity and eases with rest. Chronic cases can show visible muscle wasting or altered posture.

How are nerve entrapments diagnosed?

Clinical assessment

We start with a detailed history of the pain, numbness, and weakness, then examine to identify the nerve — mapping sensory loss and testing muscle strength. Specific tests reproduce the symptoms, such as Tinel’s sign (tapping over the nerve) and neural stretch manoeuvres that tension the affected nerve. We also assess biomechanics — posture, muscle imbalances, joint restrictions — since these can raise local nerve pressure.

Investigations

Several tools confirm the diagnosis and exclude other causes:

• Nerve conduction studies and EMG: measure how well the nerve transmits signals and localise the compression

• Ultrasound: directly visualises the nerve, showing swelling, thickening, or displacement

• MRI: useful when a space-occupying lesion, inflammation, or muscle wasting is suspected

• Diagnostic nerve block: an ultrasound-guided local anaesthetic injection — temporary relief confirms that the nerve is the pain source and guides treatment.

How do we treat compressive neuropathies?

Treatment depends on severity and cause, and follows a clear ladder.

Conservative treatment first

Most early nerve entrapments respond to conservative care. Rest and physiotherapy reduce nerve irritation, with physiotherapy improving flexibility, posture, and muscle control to take pressure off the nerve. Nerve pain medication such as amitriptyline or duloxetine can control symptoms.

Image-guided injections

When symptoms persist, ultrasound-guided injections are often effective. A corticosteroid injection reduces inflammation and swelling around the nerve. Nerve hydrodissection — injecting fluid (often 5% dextrose) around the nerve to gently separate it from the surrounding tissue — has become a popular, minimally invasive option in modern sports medicine. Dr Masci performs hydrodissection under ultrasound guidance and teaches the technique to doctors across the UK and Europe.

Surgery

We reserve surgery for cases that fail conservative treatment or where severe compression causes progressive weakness or muscle wasting. Surgery releases the nerve from the constricting structures; a nerve graft may occasionally be needed if the nerve is completely severed.

Frequently asked questions about compressive neuropathy.s

What’s the difference between a compressive neuropathy and a pinched nerve?

They’re the same thing — “compressive neuropathy” is the medical term, “nerve entrapment” or “pinched nerve” is the everyday one. All describe a nerve squeezed along its path, causing pain, tingling, numbness, or weakness.

Can a nerve entrapment heal on its own?

Mild, early entrapments often settle with rest, activity modification, and physiotherapy. Persistent or worsening cases — especially with numbness or weakness — need assessment, because untreated compression can cause lasting nerve damage and muscle wasting.

Is nerve hydrodissection better than a cortisone injection?

They serve different roles. Cortisone reduces inflammation around the nerve; hydrodissection physically frees the nerve from scar tissue and adhesions. For entrapments driven by tethering rather than pure inflammation, hydrodissection often works better — and avoids cortisone’s effect on nearby tissues. The choice depends on the nerve and the cause.

How do I know which nerve is affected?

The pattern of symptoms points to the nerve — where the numbness sits, which muscles weaken, and what movements trigger it. A clinical examination, often with ultrasound and sometimes nerve conduction studies, confirms it. Use the directory below to find the entrapment matching your symptoms.

Do nerve entrapments always need surgery?

No — most don’t. The majority improve with conservative treatment or image-guided injections. Surgery is reserved for failed treatment or progressive weakness and muscle wasting.

Final word from Sport Doctor London about compressive neuropathies

Compressive neuropathies are a common, treatable cause of pain, tingling, and weakness in active people. The keys are identifying the right nerve, determining why it’s compressed, and matching treatment to the cause — from physiotherapy through ultrasound-guided injections and hydrodissection to surgery for those who need it.

To book a one-stop nerve entrapment assessment with Dr Masci in London, contact his team here or call +44 (0) 203 488 0350.

Find your specific nerve entrapment.