Anatomy of Wrist Injuries and Hand InjuriesThe elbow joint is made up of the lower end of the upper arm bone, or humerus, and the upper ends of the two bones (the radius and the ulna) of the forearm. With your palm facing forward, the radius is on the outside of the forearm (on the thumb side) and the ulna is on the inside (or the 'pinky' side). At the place where they meet at the elbow joint, these bones are lined with a smooth type of cartilage which allows the bones to glide smoothly over one another during elbow motion.

The hand and wrist joint are made up of the following bone groups: the phalangeal bones of the fingers, the metacarpal bones of the hand, the carpal wrist bones, and the ends of each of the forearm bones which are called the radius and ulna.



The types of conditions most commonly affecting the elbow and wrist are overuse injuries. Tendonitis, which can occur in the elbow and wrist, is a frequent complaint. This condition can result from repetitive motion, like continually turning the wrist or hand gripping. Tendonitis is an inflammation of a tendon (connects muscle to bone) or bursa (a small, fluid-filled sac that acts as a cushion between bone and other moving parts).

The two most common types of tendonitis include: lateral epicondylitis (tennis elbow) which is an inflammation of the tendon on the side of the elbow away from the body; and medial epicondylitis (golfer's elbow) which affects the side of the elbow that is toward the body. And, no surprise, these conditions occur more often as we get older.

Other types of injuries to the elbow and wrist include fractures, dislocations and arthritis.

To learn about some of the most common elbow and wrist injuries and conditions, view the videos, below.

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