ECU tendonitis affects the extensor carpi ulnaris (ECU) tendon, which runs along the little finger side of the wrist and helps stabilise the joint during movement.
This tendon plays an important role in controlling wrist position, particularly during gripping, twisting and weight-bearing activities. Irritation or overload of the tendon can lead to pain and reduced function.
The condition is often related to repetitive use, particularly in sports or activities involving rotation of the wrist. In some cases, the tendon may also become unstable and move out of its normal position.
Symptoms may develop gradually or follow a period of increased activity and can include:
Symptoms are often aggravated by rotation or loading of the wrist.
Symptoms may develop gradually or follow a period of increased activity and can include:
Symptoms are often aggravated by rotation or loading of the wrist.
Diagnosis is based on clinical assessment, including a detailed history and examination of the wrist and tendon.
The tendon is assessed for tenderness, movement and stability during wrist motion.
If required, further investigations may include:
These tests help confirm the diagnosis and guide treatment decisions.
Treatment depends on the severity of symptoms and the presence of any tendon instability.
Non-surgical treatment may include:
If symptoms persist or the tendon remains unstable, surgical treatment may be recommended.
When non-surgical treatment is not effective, surgical treatment may be recommended.
The procedure may involve releasing inflamed tissue around the tendon or stabilising the tendon if it is unstable. This restores normal movement and reduces pain.
Surgery is typically performed as a day-case procedure under local or regional anaesthetic.
Following treatment, a period of rest is required before gradually returning to activity.
Recovery typically involves:
Most patients experience gradual improvement, although recovery time depends on the severity of the condition and treatment performed.
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 wrist pain, particularly on the little finger side, or if symptoms are affecting daily activities or not improving with rest.
Early assessment is important to confirm the diagnosis and guide appropriate treatment.
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