Frozen shoulder

Frozen Shoulder

Frozen Shoulder

Frozen shoulder occurs when the capsule (lining of the joint) becomes inflamed, thickened and tight. A normal healthy shoulder has a wide range of unrestricted motion. Three bones make up the shoulder: the scapula (shoulder blade), the humerus (upper arm bone), and the clavicle (collarbone). The shoulder joint is surrounded by a capsule which contains joint fluid that lubricates the shoulder joint.

Frozen shoulder causes the capsule to become thickened, tight and inflamed. This process results in restricted motion and stiffness. Frozen shoulder goes through several stages and may take up to 18 months to resolve.