Shoulder ImpingementShoulder impingement occurs when the rotator cuff does not perform as intended, and structures become compressed.
Rotator cuff muscles include supraspinatus, infraspinatus, subscapularis, and teres minor. A function of the rotator cuff is to keep the head of the humerus, a bone of the arm, tucked in its socket tightly when the arm is moving. When the rotator cuff fails to do so, tendons and bursae may be compressed resulting in irritation and inflammation if left untreated. Identifying early onset of shoulder impingement is crucial to the rehabilitation of the condition. Otherwise, prolonged inflammation can cause decreased muscular efficiency, creating a downward trend, and the biceps tendon or supraspinatus tendon could rupture. Some potential factors that could lead to shoulder impingement involve repetitive overhead movement with the arms, weakness or instability in the shoulder, and/or reduced subacromial space due to bone deformation. |
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