Frozen shoulder, also known as adhesive capsulitis, is a condition characterized by pain and stiffness in the shoulder joint. It typically develops gradually over time and can severely limit the range of motion in the affected shoulder. The condition most commonly affects individuals between the ages of 40 and 60, and it is more common in women than in men. While the exact cause of frozen shoulder is not fully understood, it is believed to involve inflammation and thickening of the shoulder capsule, the connective tissue surrounding the shoulder joint.
Having to keep a shoulder still for a long period increases the risk of developing frozen shoulder. This might happen after having surgery or breaking an arm.
Treatment for frozen shoulder involves range-of-motion exercises. Sometimes treatment involves corticosteroids and numbing medications injected into the joint. Rarely, arthroscopic surgery is needed to loosen the joint capsule so that it can move more freely.
Any movement of the shoulder causes pain, and the shoulder's ability to move becomes limited. This stage lasts from 2 to 9 months.
Pain might lessen during this stage. However, the shoulder becomes stiffer. Using it becomes more difficult. This stage lasts from 4 to 12 months.
The shoulder's ability to move begins to improve. This stage lasts from 5 to 24 months.