Carpal Tunnel Syndrome

Condition

Understanding Carpal Tunnel Syndrome

Carpal tunnel syndrome is a common condition caused by compression of the median nerve as it passes through the wrist. It typically causes numbness, tingling, pain, and altered sensation in the hand and fingers, and can progress to weakness and loss of fine motor control if left untreated. Symptoms often develop gradually and may be worse at night or with repetitive hand use. While some people improve with simple measures, others experience persistent or worsening symptoms that interfere with work, sleep, and everyday activities. Many patients seek private assessment when symptoms have not improved with splinting or when there is concern about nerve damage. At Northern Medical Practitioners, carpal tunnel syndrome is assessed carefully to determine severity and ensure timely, appropriate management.

What is carpal tunnel syndrome?

The carpal tunnel is a narrow passage at the wrist formed by bones and ligaments, through which the median nerve and flexor tendons pass. Carpal tunnel syndrome occurs when pressure within this tunnel increases, compressing the median nerve. This leads to sensory symptoms in the thumb, index, middle, and part of the ring finger, and in more advanced cases can cause weakness of the thumb muscles. The condition may occur without an obvious cause or be associated with factors such as repetitive hand use, diabetes, thyroid disease, pregnancy, or inflammatory conditions.

Symptoms and functional impact?

Common symptoms include numbness, tingling, burning, or pain in the hand and fingers, often worse at night and sometimes waking patients from sleep. Some people notice dropping objects, clumsiness, or reduced grip strength. As the condition progresses, symptoms may become constant and muscle wasting at the base of the thumb can occur, indicating ongoing nerve compression. Persistent symptoms can significantly affect work, driving, sleep, and fine motor tasks.

Assessment and diagnosis

Diagnosis is based on a detailed history and physical examination, including assessment of sensation, strength, and characteristic clinical signs. Nerve conduction studies may be used to confirm the diagnosis and assess severity, particularly where symptoms are persistent, atypical, or where surgery is being considered. Accurate assessment is important to distinguish carpal tunnel syndrome from other causes of hand or arm symptoms, such as cervical nerve root compression or peripheral neuropathy.

Treatment options

Initial management may include activity modification and wrist splinting, particularly at night. For patients with persistent or moderate symptoms, corticosteroid injection into the carpal tunnel can provide effective short- to medium-term symptom relief and may delay or avoid the need for surgery in some cases. Injection is also helpful in clarifying diagnosis.
Surgical decompression is recommended for patients with severe symptoms, evidence of nerve damage, or those who do not respond to conservative or injection-based treatment. Repeated injections are not appropriate in cases of ongoing nerve compression or progressive weakness.

Frequently Asked Questions

FAQ – Carpal Tunnel

What causes carpal tunnel syndrome?

Carpal tunnel syndrome is caused by increased pressure on the median nerve at the wrist. This may occur without a clear trigger or be associated with repetitive hand use, fluid retention, diabetes, thyroid disease, pregnancy, or inflammatory conditions.

How do I know if my symptoms are serious?

Persistent numbness, weakness, clumsiness, or muscle wasting at the base of the thumb suggest more advanced nerve compression and should be assessed promptly.

Can carpal tunnel syndrome improve on its own?

Mild symptoms may improve with splinting and activity modification, but ongoing or worsening symptoms are unlikely to resolve without further treatment.

Do I need nerve conduction studies?

Not always. They are often used to confirm the diagnosis or assess severity, particularly when symptoms are persistent or surgery is being considered.

What does a steroid injection do?

A corticosteroid injection reduces inflammation and pressure within the carpal tunnel, which can relieve symptoms. It does not permanently cure the condition.

How effective are steroid injections?

Injections are effective for many patients with mild to moderate carpal tunnel syndrome, but benefits may be temporary. They are less effective in severe disease.

Can injections cause harm?

When performed appropriately, injections are generally safe. They are not recommended repeatedly if symptoms recur or if there is evidence of nerve damage.

When is surgery recommended?

Surgery is recommended for patients with severe symptoms, nerve damage, muscle weakness, or persistent symptoms despite appropriate non-surgical treatment.

What happens if carpal tunnel syndrome is left untreated?

Ongoing nerve compression can lead to permanent sensory loss and weakness, which may not fully recover even after surgery.

Do I need physiotherapy before seeing you?

No. Physiotherapy has a limited role in carpal tunnel syndrome. We will advise if any additional measures are likely to be helpful.

Can both hands be affected?

Yes. Carpal tunnel syndrome commonly affects both hands, although symptoms may be worse on one side.

Why choose Northern Medical Practitioners?

Patients with carpal tunnel syndrome are assessed at Northern Medical Practitioners by experienced clinicians with a focus on accurate diagnosis and appropriate escalation of care. Many patients attend after symptoms have persisted despite splinting or other conservative measures. We are careful to identify those who are unlikely to benefit from repeated non-surgical treatment and will recommend early surgical referral where appropriate to reduce the risk of permanent nerve damage. Where injections are offered, they are delivered with careful technique and integrated into a clear management plan rather than used as a delaying tactic.