Primary Adhesive Capsulitis (also known as Frozen Shoulder) is a condition in which the shoulder joint becomes inflamed and stiff. This condition is caused by the capsule of the shoulder joint becoming thick and tight, leading to a decreased range of motion and pain. Primary Adhesive Capsulitis typically affects people between the ages of 40 and 60 and can last for up to 18 months.
Secondary Adhesive Capsulitis is caused by an injury to the shoulder joint, often as a result of a fall, dislocation, or fracture. It can also be caused by an underlying medical condition such as diabetes or an autoimmune disorder. Secondary Adhesive Capsulitis is characterized by inflammation, stiffness, and pain that can last for up to a year.
The primary difference between Primary and Secondary Adhesive Capsulitis is the cause of the condition. Primary Adhesive Capsulitis is caused by the capsule of the shoulder joint becoming thick and tight, whereas Secondary Adhesive Capsulitis is caused by an injury to the shoulder joint or an underlying medical condition. Both conditions can cause inflammation, stiffness, and pain, but the treatment and duration of the condition may vary depending on the cause.