Scapulothoracic Joint Pain

Scapulothoracic joint pain can be caused by a number of conditions.

The scapulothoracic joint is not a true "joint" but is the place where the scapula attaches to the rib cage (thoracic area), which creates a joint-like movement. Pain in this area can be caused by crepitus, bursitis, tendinitis and other chronic conditions.

Crepitus

Crepitus causes a grinding or snapping sound accompanied by pain when the shoulder moves. Skin or bone lesions or scar tissue can cause this. It may occur alone or with bursitis (swelling of the bursa).

Bursitis

Scapulothoracic bursitis is inflammation and pain at the site of the bursa, which is a protective covering filled with fluid to protect the scapulothoracic attachment area. Those who suffer from this condition may feel a lump at the pain site.

Tendinitis

Tendinitis can occur in the shoulder area when it is used repetitively. Typically there is pain, loss of movement and inflammation. The pain can come and go, remain constant or occur only with certain movements.

Chronic Conditions

Autoimmune diseases in general can cause pain in the scapulothoracic area. All forms of arthritis (rheumatoid, osteoarthritis and arthritic pain after an injury) can cause shoulder pain, redness, soreness and swelling.

Other Considerations

A fall, recent injury or sprained rib can all cause scapulo-thoracic pain. Also, swelling of the nerves between the ribs (intercostal neuritis) can cause pain in the thoracic area and spread to the shoulder.

References

• The University of Oklahoma: Scapulothoracic Movements
• State University of New York: The Shoulder Girdle
• Journal of the American Academy of Orthopaedic Surgeons: Symptomatic Scapulothoracic Crepitus and Bursitis

Resources

• Sportsinjuryclinic.net: The Anatomy of the Shoulder
• Brigham and Women's Hospital: Shoulder Pain