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Lateral Elbow Anatomy

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Lateral epicondyle of the humerus. Tennis elbow lateral epicondylitis tennis elbow or lateral epicondylitis is one of the most common elbow problems seen by an orthopedic surgeon.

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The muscles in your forearm cross the elbow and attach to the humerus.

Lateral elbow anatomy. The following radiographs show the normal anatomy of the elbow. When any of these structures is hurt or diseased you have elbow problems. Elbow lateral view the lateral elbow view is part of the two view elbow series examining the distal humerus proximal radius and ulna.

A common cause is tendinitis an inflammation or injury to the tendons that attach muscle to bone. It is deceptively one of the more technically demanding projections in radiography 1 3. Your elbow joint is made up of bone cartilage ligaments and fluid.

In birds where the arm is somewhat rotated compared to other tetrapods it is termed dorsal epicondyle of the humerus. Many things can make your elbow hurt. The muscle involved in this condition the extensor carpi radialis brevis helps to straighten and stabilize the wrist figure 1.

A common injury associated with the lateral epicondyle of the humerus is lateral epicondylitis also known as tennis elbow. The olecranon process of the ulna articulates with the trochlea and olecranon fossa of the humerus. Most of the muscles that straighten the fingers and wrist come together and attach to the medial epicondyle or the bump on the inside of your arm just above the elbow.

In comparative anatomy the term ectepicondyle is sometimes used. The anatomy of the elbow. A complete exam includes ap lateral and 2 oblique views.

There are bony bumps at the bottom of the humerus called epicondyles. Lateral collateral ligament also called the radial collateral ligament which runs along the outside of the elbow. It traverses posterior to the medial epicondyle through the cubital tunnel.

It is actually a tendinitis of the muscle called the extensor carpi radialis brevis which attaches to the lateral epicondyle of the humerus. The bony bump on the outside lateral side of the elbow is called the lateral epicondyle. Lateral epicondylitis commonly known as tennis elbow is a painful condition involving the tendons that attach to the bone on the outside lateral part of the elbow.

Anatomy at elbow runs medial to brachial artery pierces medial intermuscular septum at the level of the arcade of struthers and enters posterior compartment. A third major ligament of the elbow is the annular ligament which circles the top or head of the radius holding it against the humerus. The radial head articulates with the capitulum.

Tendons transmit a muscles force to the bone. Your elbow joint is a joint made up of three bones. The outside lateral bump just above the elbow is called the lateral epicondyle.

Your upper arm bone humerus and the two bones in your forearm radius and ulna. Muscles and tendons help the elbow joint move. These two structures should align in all projections.

The projection is the orthogonal view of the ap elbow allowing for examination of the ulna trochlear joint.

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