
Shoulder instability is a problem of a loose shoulder joint. Instability can be caused by a previous dislocation, or it may happen when the ligaments around the joint are too loose.
Shoulder Dislocation
A
shoulder dislocation is an injury that occurs when the top of the arm
bone (humerus) becomes disconnected from the shoulder blade (scapula). Dislocations occur after falls or other serious injuries.
Shoulder Separation
Separations are the result of a disruption of the acromioclavicular
joint. This injury can cause pain and swelling.
Biceps Tendon Rupture
A
proximal biceps tendon rupture occurs when the tendon of the biceps
muscle ruptures at the joint. This may cause pain and a lump in
the arm.
SLAP Lesion
The
SLAP (Superior Labrum Anterior-Posterior) lesion of the shoulder is a
type of labral tear. The most common cause is a fall onto an
outstretched hand.
Bankart Lesion - Labral Tear
A
Bankart lesion is a type of labral tear most commonly due to
dislocation of the shoulder. The tear is mostly at the joint at
the labrum or the protective region of the shoulder. Bankart lesions
cause problems of persistent instability.
Rotator Cuff Injury
A rotator cuff injury is a tear or inflammation of the rotator cuff tendons in the shoulder. Rotator cuff injury is known by several names, including pitcher's, swimmer's, and tennis shoulder. The tendons of four muscles make up the rotator cuff. Rotator cuff tendonitis is an inflammation of the tendons while a rotator cuff tear is a ripping of one or more of the tendons.