SHOULDER IMPINGEMENT SYNDROME
Shoulder impingement syndrome is reported as shoulder pain that is worse with overhead activities. The patient will often have a history of a sports or occupational requirement to work in an overhead position.
Impingement of several structures may occur. The biceps tendon, supraspinatus tendon, and the subacromial bursa are all volunerable to this front to side of the arm impingement. Instability is often a coexisting problem, allowing excessive upward movement of the arm in the shoulder socket. There also may be excessive tightness in the back of the capsule that surrounds the shoulder joint, which also causes the arm to rise too much in the joint.