Distal Biceps Tendon Tear Repair

Diagnosing a distal biceps tendon tear begins with a detailed assessment by your orthopaedic consultant. This includes discussing how the injury occurred, the symptoms you’re experiencing, and how your arm function has been affected in daily life or at work.

During the physical examination, your doctor will look for tenderness, swelling, bruising, weakness, and changes in the shape of the biceps muscle. A noticeable bulge in the upper arm, sometimes described as a “balled-up” muscle, can occur if the tendon has fully ruptured and retracted. Your doctor will also assess your ability to rotate your forearm and compare the strength and movement between both arms.

Imaging tests may be used to confirm the diagnosis and assess the severity of the tear:

• X-rays can help rule out fractures or bone involvement
• Ultrasound or MRI scans provide detailed images of the tendon and surrounding soft tissues and can show whether the tear is partial or complete

In some straightforward cases, a clear physical examination may be enough to diagnose the injury without further imaging. Early and accurate diagnosis is important, as treatment decisions and outcomes can depend on how soon care begins after the injury.

Non-surgical management

Non-surgical treatment may be considered if you have lower physical demands, are less active, or if the injury is diagnosed some time after it occurred. This approach focuses on pain control, maintaining movement, and optimising arm function where possible.

Initial treatment often includes resting the arm in a sling to reduce strain, along with pain relief and anti-inflammatory medication to help manage discomfort and swelling. As symptoms improve, physiotherapy is introduced to maintain elbow and forearm range of motion and prevent stiffness.

It’s important to understand that non-surgical treatment may result in ongoing weakness, particularly with forearm twisting movements that are important for lifting, carrying, and manual tasks.

Your healthcare team will guide you on activity modification and a structured rehabilitation plan to support recovery and minimise long-term limitations.

For many people, particularly those who are active, carry out manual work, or want to regain as much arm strength as possible, surgical repair of a distal biceps tendon tear is often recommended. Surgery aims to reattach the torn tendon to the radius bone, restoring strength, stability, and normal arm function.

The procedure is usually performed under general anaesthesia. Your surgeon will typically make a small incision at the front of the elbow to access the torn distal biceps tendon. If the tendon has retracted up the arm, it is carefully identified and returned to its original attachment point. The surgeon then prepares the radial tuberosity, the small bony area on the radius where the tendon normally attaches, before securely fixing the tendon back in place. This is done using strong sutures, anchors, or a specialised metal button designed to hold the tendon firmly while it heals. In some cases, a second small incision may be needed if the tendon has retracted significantly.

Reattaching the tendon helps restore the biceps muscle’s key functions, including elbow bending and forearm rotation (supination), which turns the palm upward. Without surgical repair, many people experience a lasting loss of strength, particularly with twisting movements, and reduced overall arm function. Surgery also helps prevent ongoing tendon retraction and muscle wasting, improving the likelihood of regaining strength and movement.

After surgery, protecting the repaired tendon is essential to allow proper healing. You’ll usually wear a sling or brace to support your arm and reduce strain in the early recovery period. Rehabilitation begins with gentle, pain-free range-of-motion exercises to prevent stiffness, followed by a gradual progression to strengthening exercises under the guidance of a physiotherapist.

Full recovery takes time, as the tendon needs several months to heal and regain strength. During this period, it’s important to avoid heavy lifting and strenuous activities to protect the repair and reduce the risk of re-injury.

Your surgeon will discuss the potential risks of surgery with you, which may include infection, stiffness, nerve irritation, or, rarely, re-rupture of the tendon. In some cases, extra bone can form around the repair site (heterotopic ossification), which may affect elbow movement. Regular follow-up appointments and imaging, such as X-rays or MRI scans when needed, allow your healthcare team to monitor healing and address any issues early.

Following your rehabilitation programme and attending all scheduled follow-up appointments will help maximise recovery, restore arm function, and minimise the risk of complications.