The shoulder is the most mobile joint in the human body and therefore the majority of its stability has to come from muscles and ligaments. The common group of muscles called the “rotator cuff” is responsible for this stability, while still allowing the normal range of motion. The muscles that make up the rotator cuff are supraspinatus, infraspinatus, teres minor and subscapularis.
Some potential causes of shoulder pain
include:
Bursitis: Bursitis is an inflammation of a
fluid-filled sac, or bursa, that lies between tendon and skin or between tendon
and bone. Normally a bursa protects the joint and helps make movement more
fluid.
Rotator
Cuff Tendonitis: Tendonitis
is when tendons become compressed under the rigid bony arch of the shoulder.
The compressed tendons become inflamed or damaged and cause pain.
Rotator
Cuff Tear: A rotator cuff
tear occurs when the tendons of the rotator cuff separate from the bone. This
can either be a partial or a complete tear, and in the case of a complete tear,
surgery is sometimes necessary.
Frozen
Shoulder: Also called
'adhesive capsuliitis,' this is a common condition that leads to stiffness of
the joint. Physical therapy and stretching are extremely important aspects for
treatment.
Shoulder
Dislocation: A dislocation
is an injury that occurs when the arm itself dislocated from the socket,
usually after a forceful trauma.
AC
Separation: This is a
disruption of the joint that connects the collarbone to the shoulder blade.
Arthritis: Arthritis is a gradual narrowing of the
joints and loss of protective cartilage in the joints about the shoulder. This
is less common than hip or knee arthritis because it is not a weight bearing
joint. However, in cases of trauma or chronic conditions, shoulder arthritis is
still a viable diagnosis.
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