Elbow Conditions

Distal Biceps Tendon Rupture

Distal Biceps Tendon Rupture: Causes, Symptoms and Treatment Options

A distal biceps tendon rupture is an injury where the tendon attaching the biceps muscle to the forearm bone tears near the elbow. This injury can significantly affect arm strength, particularly with bending the elbow and rotating the forearm. The biceps muscle plays an important role in lifting, pulling, and rotating the forearm. When the tendon ruptures, these movements can become painful, weak, or difficult to perform.

Distal biceps tendon ruptures most commonly occur during sudden lifting or forceful pulling activities and often require prompt assessment to determine the most appropriate treatment.

Understanding the Distal Biceps Tendon

The biceps muscle is located at the front of the upper arm and has two attachment points at the shoulder and one attachment at the elbow. At the elbow, the distal biceps tendon attaches the biceps muscle to the radius bone in the forearm.

This tendon allows the biceps muscle to:

Bend the elbow (elbow flexion)

Rotate the forearm so the palm faces upward (supination)

Assist with lifting and pulling movements

When the distal biceps tendon tears, these functions may be weakened or lost.

What Causes a Distal Biceps Tendon Rupture?

Distal biceps tendon ruptures most often occur when a sudden force is applied to a bent elbow, particularly when the muscle is contracting while trying to resist a heavy load.

Common causes include:

Risk factors that may increase the likelihood of tendon rupture include:

Symptoms of a Distal Biceps Tendon Tear

Symptoms often occur suddenly at the time of injury and may include:

A sudden sharp pain in the front of the elbow
A popping or tearing sensation at the time of injury
Swelling or bruising around the elbow or forearm
Weakness when bending the elbow
Significant weakness rotating the forearm (turning palm upward)
Change in arm contour or muscle position

Some patients notice the biceps muscle moving higher in the arm due to loss of tendon attachment.

Types of Distal Biceps Tendon Injuries

1

Partial Distal Biceps Tendon Tears

Partial tears involve damage to part of the tendon without complete separation from the bone. Symptoms may develop gradually or following a minor injury and can include pain and reduced strength.

2

Complete Distal Biceps Tendon Ruptures

A complete rupture occurs when the tendon fully detaches from the radius bone. This usually causes significant weakness, particularly with forearm rotation and lifting activities.

How a Distal Biceps Tendon Rupture Is Diagnosed

Diagnosis is based on clinical examination and imaging.

Assessment typically includes:

Accurate diagnosis helps determine whether surgical or non-surgical treatment is most appropriate.

Review of injury history and symptoms

Physical examination assessing elbow strength and tendon integrity

X-rays to assess bone injury or avulsion fractures

Ultrasound or MRI to confirm tendon tearing and assess severity

Non-Surgical Treatment for Distal Biceps Tendon Rupture

Non-operative management may be considered in selected patients, particularly those with partial tears or lower functional demands.

Non-surgical treatment may include:

While pain may improve, complete tendon ruptures treated without surgery often result in permanent reduction in forearm rotation strength and some loss of elbow strength.

Distal Biceps Tendon Repair Surgery

Surgical treatment is commonly recommended for complete distal biceps tendon ruptures in patients who wish to restore strength and function. Distal biceps tendon repair surgery involves reattaching the torn tendon to the forearm bone. This is typically performed through a small incision near the elbow.

The tendon is secured to the bone using specialised fixation techniques, which may include:

The goal of surgery is to restore tendon attachment, improve strength, and support return to normal activities.

Recovery and Rehabilitation After Distal Biceps Tendon Repair

Recovery following distal biceps tendon rupture depends on injury severity and treatment approach.

Rehabilitation typically involves:

Rehabilitation is carefully structured to allow tendon healing while restoring strength and mobility.

Full recovery often takes several months, and adherence to physiotherapy is important for optimal outcomes.

Choosing the Right Treatment for Distal Biceps Tendon Rupture

Treatment decisions are based on several individual factors, including:

Dr Richard Dallalana provides specialist assessment of distal biceps tendon injuries to determine the most appropriate treatment pathway for each patient.

When to See a Specialist for Distal Biceps Tendon Injury

You may benefit from specialist assessment if you experience:

Sudden elbow pain following lifting or pulling activity
A popping sensation in the elbow
Weakness bending the elbow or rotating the forearm
Visible change in biceps muscle shape
Persistent elbow pain or loss of strength

Early assessment can help confirm the diagnosis and support appropriate treatment planning.

If you’re experiencing ongoing pain, stiffness, or reduced movement that is affecting your daily activities or quality of life, a thorough orthopaedic assessment can help determine the cause and guide the most appropriate treatment options for your situation.