Etienne A. Mejia, M.D.

Dr. Etienne A. Mejia is a board certified orthopedic surgeon with subspecialty fellowship training in arthroscopy, athletic injuries, sports medicine and rehabilitation.

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Timothy S. Mologne, M.D.

Dr. Timothy S. Mologne is board certified orthopedic surgeon with subspecialty fellowship training in sports medicine and arthroscopy.

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What is frozen shoulder?

What is frozen shoulder?
April 16, 2014

Frozen shoulder, also called adhesive capsulitis, is a thickening and tightening of the soft tissue capsule that surrounds the glenohumeral joint, the ball and socket joint of the shoulder. When the capsule becomes inflamed, scarring occurs and adhesions are formed. This scar formation greatly intrudes upon the space needed for movement inside the joint. Pain and severely limited motion often occur as the result of the tightening of capsular tissue.
 
There are two types of frozen shoulder: primary adhesive capsulitis and secondary adhesive capsulitis.
 
Primary adhesive capsulitis is a subject of much debate. The specific causes of this condition are not yet known. Possible causes include changes in the immune system, or biochemical and hormonal imbalances. Diseases such as diabetes mellitus, and some cardiovascular and neurological disorders may also be contributing factors. In fact, patients with diabetes have a three times higher risk of developing adhesive capsulitis than the general population. Primary adhesive capsulitis may affect both shoulders (although this may not happen at the same time) and may be resistant to most forms of treatment.
Secondary (or acquired) adhesive capsulitis develops from a known cause, such as stiffness following a shoulder injury, surgery, or a prolonged period of immobilization.
 
With no treatment, the condition tends to last from one to three years. Many patients are unwilling to endure the pain and limitations of this problem while waiting for it to run its natural course. Even after many years, some patients will continue to have some stiffness, but no serious pain or functional limitations.

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