The elbow is a hinge joint that forms where the humerus, radius and ulnar meet. Like the knee, the main movements that occur at the elbow are bending and straightening. Elbow pain typically refers to any pain felt in or around the elbow, and can extend down into the forearm or up into the biceps/triceps. Range of movement in the elbow joint is important - particularly in a traumatic injury as it can stiffen up quickly.  Injuries that occur in the elbow may be due to a traumatic event, overuse, poor workplace setup, frequent repetitive moments involving the hand/wrist, and many other factors.