Understanding Elbow Tendons

Tendons are strong, fibrous tissues that connect muscles to bones and allow movement at the joints. At the elbow, the biceps and triceps tendons play a critical role in arm motion:

• Biceps tendon: The biceps tendons attach the biceps muscle to the arm bone at both the shoulder and elbow. At the shoulder, there are two tendons, the long head and the short head, that connect the biceps to the shoulder blade (scapula) and the arm bone (humerus). These tendons allow elbow bending (flexion) and forearm rotation (supination).
• Triceps tendon: The triceps tendon attaches the triceps muscle to the arm bone and allows elbow straightening (extension) and helps stabilize the arm during pushing motions.

The long head of the biceps tendon passes through the shoulder joint and attaches to the shoulder blade, making it more susceptible to injury than the short head. Torn tendons can also involve other structures in the shoulder, such as the rotator cuff, leading to additional pain and dysfunction. Damage to either tendon can lead to pain, weakness and loss of function.

Distal Biceps Tendon Injuries

The distal biceps tendon connects the biceps muscle on the front of the upper arm to the radius bone near the elbow at a point called the radial tuberosity. Injuries to this tendon are less common than shoulder biceps injuries but can have a major impact on strength.

Distal biceps tendon injuries often occur when lifting a heavy object or during sudden, forceful movements that strain the tendon. A biceps tear can happen at either the shoulder or the elbow and may be partial or complete. Common biceps injuries include tendinitis, tears or ruptures at the shoulder or elbow, often resulting from overuse or sudden heavy lifting.

Causes of Distal Biceps Tendon Tears

• Sudden heavy lifting or forceful pulling, especially when lifting a heavy object unexpectedly
• Lifting an object heavier than expected, placing significant strain on the tendon
• Traumatic injury or fall
• Degenerative tendon weakening over time due to gradual wear and fraying

Most distal biceps tendon tears are complete ruptures, where the tendon detaches fully from the bone.

Symptoms of a Distal Biceps Tendon Tear

• Sudden sharp pain or a popping sensation at the elbow
• Swelling and bruising in the forearm or elbow
• Tenderness at the front of the elbow
• Visible bulging of the biceps muscle toward the shoulder
• Weakness when bending the elbow
• Significant loss of forearm rotation strength, especially turning the palm upward

A tear near the elbow often causes a visible gap in the front of the elbow and is more likely to require surgery than a tear near the shoulder. Without surgical repair, patients may experience a 30% to 40% loss of supination strength.

Triceps Tendon Injuries

The triceps tendon attaches the triceps muscle on the back of the upper arm to the olecranon, the bony tip of the elbow. Triceps tendon injuries are rare but can severely limit the ability to straighten the arm.

These injuries require careful clinical evaluation and may involve imaging such as X-rays or MRI to assess both soft tissue and bone involvement. Triceps tendon injuries typically involve inflammation, degeneration or tearing of the tendon fibers.

Causes of Triceps Tendon Injuries

• Direct trauma to the elbow
• Falling onto an outstretched arm
• Sudden forceful contraction of the triceps
• Overuse or repetitive strain
• Degenerative changes, arthritis or prior elbow surgery

Symptoms of a Triceps Tendon Tear

• Pain and swelling at the back of the elbow
• Difficulty or inability to straighten the arm
• Weakness with pushing motions
• A gap or indentation above the elbow in severe cases
• Bruising around the elbow joint

Triceps tendon tears may be partial or complete, with complete tears typically requiring surgical repair.

Diagnosis of Biceps and Triceps Tendon Injuries

Accurate diagnosis is essential to guide treatment and prevent long-term strength loss. Evaluation typically includes:

• Detailed medical history and physical examination
• Assessment of arm strength, range of motion and tendon integrity
• X-rays to rule out associated fractures or bone avulsions
• MRI to confirm tendon tears, determine severity and evaluate surrounding structures

Early diagnosis improves treatment outcomes, especially for complete tendon ruptures.

Non-Surgical Treatment Options

Partial tendon tears or injuries in low-demand patients may be treated without surgery. Conservative treatment options may include:

• Rest and activity modification
• Immobilization with a sling or brace
• Nonsteroidal anti-inflammatory medications, as appropriate
• Physical therapy to strengthen surrounding muscles and restore motion

Non-surgical treatment may relieve pain but does not restore full strength in complete tendon ruptures.

Surgical Treatment Options

Surgery is often recommended for complete biceps or triceps tendon tears, especially in active individuals or those who rely on arm strength for work or sports.

Distal Biceps Tendon Repair

• Reattaches the torn tendon to the radius using sutures, anchors or a bioabsorbable screw
• Best outcomes occur when surgery is performed within the first few weeks after injury

Triceps Tendon Repair

• Reattaches the tendon to the olecranon using sutures or anchors
• Restores elbow extension strength and stability

Both procedures are typically performed on an outpatient basis.

Recovery and Rehabilitation

Recovery timelines vary based on injury severity and treatment type. General recovery expectations include:

• A short period of immobilization after surgery
• Gradual return of motion under medical supervision
• Progressive strengthening through physical therapy
• Activity restrictions for several weeks to protect healing tissue

Most patients regain functional strength and range of motion when treatment and rehabilitation plans are followed closely.

When to See an Elbow Specialist

You should seek prompt evaluation if you experience:

• Sudden elbow pain with a popping sensation
• Visible arm deformity or muscle bulging
• Weakness when bending or straightening the arm
• Bruising or swelling near the elbow
• Difficulty lifting, gripping or rotating the forearm

Early treatment helps prevent permanent strength loss and long-term disability.

Expert Care for Biceps and Triceps Tendon Injuries at OrthoTexas

OrthoTexas provides comprehensive care for biceps and triceps tendon injuries, offering advanced diagnostics, conservative management and surgical expertise when needed. Our goal is to restore elbow strength, stability and confidence so you can return to work, sports and daily activities safely.