Frozen Shoulder Adhesive capsulitis, also known as frozen shoulder, is a condition characterized by pain and significant loss of both active range of motion (AROM) and passive range of motion (PROM) of the shoulder. While many classification systems are proposed in the literature, frozen shoulder is most commonly classified as either primary or secondary. Primary frozen shoulder is idiopathic in nature, and radiographs appear normal. Secondary frozen shoulder develops due to some disease process, which can further be classified as systemic, extrinsic, or intrinsic. |