Shoulder dislocation is an injury to the ball and socket joint of the shoulder in which the head of the humerus has become displaced from its normal position. It's important that when a person sustains this injury, they seek immediate medical advice in order to reduce both pain and damage.A shoulder brace is used to limit movement in patients who have sustained a shoulder injury. Depending on the pain, some doctors may recommend a shoulder sling rather than a brace for shoulder dislocation as it provides minimal support.