Frozen Shoulder
What is frozen shoulder? Frozen shoulder is a condition in which there is significant loss of motion of shoulder joint accompanied by pain and stiffness. The movement involving reaching straight up and rotation of joint such as while reaching behind the back may be affected first although with time all movements may get affected. Pain may be deep seated, poorly localised and constant or only at night when lying on the affected side. To understand the condition better it is helpful to know about the basic anatomy of shoulder joint . The shoulder joint is formed by three bones – the arm bone (humerus), shoulder blade (scapula), and the collar bone (clavicle). The rounded head of the arm bone (humerus) is relatively large compared to the socket of the shoulder blade and this size discrepancy allows for the large range of motion of the shoulder. The shoulder joint is surrounded by the strong joint capsule and further supported by a group of muscles called the ...