What is shoulder instability?
Shoulder instability is a condition characterized by a dislocation of the shoulder joint, when the head of the humerus pops out of the glenoid (socket bone of the shoulder joint). There are different types of shoulder instability. An acute trauma, with the shoulder dislocating in an accident, is a very painful injury. Sometimes, the humeral head does not relocate by itself and gets stuck underneath the glenoid. This condition is referred to as an acute shoulder dislocation or luxation.