Biceps Labral Complex Injury

The biceps labral complex (BLC) refers to the combined structure of the long head of the biceps tendon and its attachment at the superior labrum. Injury to this complex — including SLAP tears — is common in overhead athletes and produces anterior superior shoulder pain with overhead activity.

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Typical Recovery Time

4–6 months post-surgery for return to throwing

Symptoms

•Deep anterior-superior shoulder pain
•Pain with overhead throwing, serving, or swimming
•Clicking or popping at the top of the shoulder
•Pain with resisted biceps loading (Speeds test positive)
•Shoulder fatigue with repetitive overhead use

Common Causes

•Repetitive traction on the biceps anchor (throwing, serving)
•FOOSH (fall on outstretched hand)
•Traction injury during heavy lifting
•Deceleration forces in the throwing motion
•Associated SLAP tear

Treatment Options

1Physical therapy targeting biceps and posterior shoulder

2Rest from overhead activity

3Intra-articular or biceps sheath injection

4Arthroscopic SLAP repair or biceps tenodesis

5Return-to-throwing program post-surgery

When to See a Doctor

Evaluation by a sports medicine physician or orthopedic shoulder specialist is recommended if overhead activity is consistently painful or associated with clicking.

Frequently Asked Questions

What is a biceps labral complex injury?

A biceps labral complex injury involves the area where the biceps tendon attaches to the cartilage ring of the shoulder socket. This region helps stabilize the shoulder during lifting, throwing, and overhead movement. Injury can cause pain, clicking, or weakness.

What causes a biceps labral complex injury?

It can occur from repetitive overhead activity, throwing, lifting, or a fall onto the arm. Athletes in baseball, tennis, swimming, and weightlifting are at higher risk. It may also develop over time from shoulder wear and stress.

What are the symptoms?

Symptoms often include deep shoulder pain, clicking, catching, or pain with overhead activity. Some patients feel weakness or decreased throwing power. Pain may be worse with lifting or reaching behind the body.

How is it treated and do I need surgery?

Treatment often begins with physical therapy, activity modification, and anti-inflammatory medications. Many patients improve without surgery. Surgery may be considered if pain, instability, or mechanical symptoms continue despite treatment.

When can I return to sports?

Return to sport depends on pain control, strength, and shoulder stability. Non-surgical recovery may take several weeks to months. Throwing athletes often need a gradual return-to-throwing program.

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