Clavicular Osteolysis (Weight Lifter’s Shoulder)

Description

Clavicular osteolysis is an overuse injury to the joint at the end of the collarbone (clavicle) at the roof of the shoulder (acromion). The end of the collarbone then slowly dissolves and resorbs. The cause is unclear, but it may be a reaction to stress or a stress fracture of the end of the collarbone.

Common signs and symptoms

• Diffuse discomfort or ache, tenderness, and swelling at the end of the collarbone or the acromioclavicular (AC) joint, at the top of the shoulder, are common.

• Symptoms usually start slowly and insidiously following a workout and progress to affect the whole workout, occasionally causing constant pain. Symptoms are usually first noted during bench press activities.

• Pain on the top of the shoulder worsens when reaching across the body.

Causes

• Usually, repeated trauma, such as with weight lifting

• Less commonly, a traumatic event, such as falling on the shoulder

Factors that increase risk

• Contact sports, weight lifting, and racket sports

• Poor physical conditioning (strength, flexibility)

• Previous shoulder separation, sprain, or dislocation

• Inadequate or poorly fitting protective equipment

Preventive measures

• Limit the amount and frequency of weight lifting.

• Vary your weight-lifting routine.

• Avoid trauma to the shoulder, such as with tackling.

• Maintain appropriate conditioning, including shoulder strength, endurance, flexibility, and cardiovascular fitness.

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