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The shoulder is a complex
joint involving 3 different bones and 20 different muscles allowing for a
wide range of motion. The main joint of the shoulder (glenohumeral joint)
is connected by a group of 4 muscles and their tendon attachments, called
the rotator cuff. Problems with the rotator cuff include sports injuries,
dysfunction due to muscle imbalance, wear and tear issues leading to
fibrotic scar tissue formation, and adhesions. The symptoms from rotator
cuff problems can vary to a slight catching or pain to severe pain and
frozen shoulder. Because of the wide range of motion of the shoulder
joint, structural alignment is also key to the health of the joint.
Misalignment or subluxation will lead to premature deterioration of the
joint. A third consideration is nerve supply to the shoulder. Many pains
in the shoulder actually originate in the cervical spine as the nerves
from this region travel to the muscles and other tissues of the shoulder
as well as the arm and hand. Irritated nerves in this region can lead to
referred pain or cause the muscles in the region to become tight or weak
leading to imbalance and dysfunction in the shoulder joint.
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Shoulder
Pain