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Causes. The shoulder joint is the most frequently dislocated joint of the body. Because it moves in several directions, your shoulder can dislocate forward, backward or downward, completely or partially, though most dislocations occur through the front of the shoulder. dislocated shoulder may be caused by: 1  Sports injuries. 2  Shoulder dislocation is a common injury in contact sports, such as football and hockey, and in sports that may involve falls, such as downhill skiing, gymnastics and volleyball. 3  Trauma not related to sports.
When metacarpophalangeal dislocations do occur, they are usually dislocations of either the index finger or little finger (pinky). Symptoms. A dislocated finger is crooked, painful and swollen, and its surface skin may be cut, scraped or bruised. If a dislocated finger has been straightened on the playing field, it may feel abnormally loose, weak or unstable afterward. Diagnosis. Your doctor will suspect that your finger is dislocated if it appears deformed.