A dislocated joint happens when bones are partly or completely pulled out of their normal position. Joints can dislocate when a strong force wrenches or pulls the bone into an abnormal position. Common dislocations include the knee, jaw, ankle, and fingers and thumbs.
Signs and symptoms
Someone with a dislocated joint may:
have swelling and bruising around the joint and it may look shorter, bent, or deformed.
complain of a severe, sickening pain
be unable to move the joint.

