This joint complex includes three bones, the humerus (arm bone), and the radius and ulna (two bones in the forearm).
Motion at this joint includes flexion (biceps), extension (triceps) and rotation (supination/pronation). The ulnar collateral ligament (UCL) attaches the humerus to the ulna, the radial collateral ligament (RCL) attaches the radius to the humerus and the annular ligament attaches the radius to the ulna.
Acute or chronic inflammation to the olecranon (tip of the elbow joint) bursa (fluid sac). This condition can result from a sports related trauma, fall, or repetitive pressure over the olecranon. Signs/symptoms include swelling over the tip of the elbow, redness, mildly limited elbow range of motion, and pain.
Traumatic tearing of the biceps tendon attachment at the elbow. Usually results from a sudden extension of a flexed elbow position. Signs/symptoms include pain at the elbow with elbow flexion or rotation, swelling, and bruising on the front of the elbow, and loss of normal biceps muscle appearance.
Repetitive overuse injury of the tendon attaching the forearm muscles to the inside of the elbow joint. Gripping, flexion of the wrist or fingers, and rotation of the forearm against resistance can be very painful.
Jul 15, 2010