Adhesive capsulitis, commonly known as “frozen shoulder”, occurs secondary to inflammation and thickening of the fibrous joint capsule of the glenohumeral joint. The glenohumeral joint includes the head of the humerus and the concave glenoid fossa of the scapula and is where most of our shoulder motion comes from.  The inflammation and thickening of the glenohumeral capsule causes it to adhere down to the humeral head,