Radial tunnel syndrome is caused by compression of the posterior interosseous nerve as it passes through the forearm. This branch of the radial nerve supplies the muscles responsible for extending the wrist and fingers.
The condition typically presents as pain along the outer part of the elbow and forearm. It is often associated with repetitive use of the arm and can be mistaken for tennis elbow, as the symptoms are similar.
Symptoms usually develop gradually and may worsen with activity. Unlike other nerve compression conditions, radial tunnel syndrome does not cause numbness or tingling, as this nerve does not supply sensation.
Symptoms often develop gradually and may include:
In more advanced cases, there may be weakness in extending the wrist or fingers.
Symptoms often develop gradually and may include:
In more advanced cases, there may be weakness in extending the wrist or fingers.
Diagnosis is based on clinical assessment, including a detailed history and examination of the elbow and forearm.
Radial tunnel syndrome can be difficult to distinguish from other conditions such as tennis elbow, and diagnosis is often based on clinical findings.
In some cases, imaging or nerve studies may be used to exclude other causes of symptoms.
Treatment depends on the severity of symptoms and their impact on daily function.
Non-surgical treatment may include:
If symptoms persist despite non-surgical treatment, surgical decompression of the nerve may be considered.
When non-surgical treatment is not effective, surgical decompression of the nerve may be recommended.
The procedure involves releasing structures within the radial tunnel that are compressing the nerve. This reduces pressure on the nerve and aims to relieve pain.
Surgery is usually performed as a day-case procedure under local or regional anaesthetic.
Following surgery, the arm may be supported in a light dressing for a short period.
Recovery typically involves:
Improvement in symptoms may take time, particularly as nerve-related pain can settle gradually.
As with any surgical procedure, there are potential risks, although these are uncommon.
Possible complications include:
Your surgeon will discuss the expected outcomes and risks before proceeding with treatment.
You should seek medical advice if you experience persistent pain in the elbow or forearm, particularly if symptoms do not improve with rest or are affecting daily activities.
Early assessment is important to confirm the diagnosis and guide appropriate treatment.
.png)