An x-ray is very useful in diagnosing a DRUJ injury and causes over 2 mm widening of the radial ulnar joint (the joint between the radius and the ulna). On the lateral x-ray displaced more ...

The elbow is a hinge joint. It connects the further end of the humerus and the nearest ends of two lower-arm bones: the ulna and radius. The elbow flexes and extends the forearm, and rotates the ...

The humerus is the long bone in the upper arm that extends from your shoulder to your elbow joint. The radius and ulna in the forearm run parallel, connecting your elbow to your wrist. These bones ...