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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.
It causes the ligaments that hold your shoulder in place to stretch. A common risk in many sports, a dislocated shoulder can leave you on the sidelines for three months. Following a shoulder dislocation, expect that your arm may be immobilized for about four weeks to allow the joint time to heal properly.A sling or a shoulder immobilizer will prevent you from using your shoulder.In general, dislocated shoulders fully heal within four to 12 weeks depending on your age, the amount and severity of structural damage that was done to the muscles and ligaments at the time of dislocation, and your physical therapy regimen.t causes the ligaments that hold your shoulder in place to stretch. A common risk in many sports, a dislocated shoulder can leave you on the sidelines for three months. Following a shoulder dislocation, expect that your arm may be immobilized for about four weeks to allow the joint time to heal properly.