Examples of radioulnar

• Therefore, supination-pronation movements were only possible by rotating the forearm around the radioulnar joint.

• The forearm contains two long bones, the radius and the ulna, forming the radioulnar joint.

• Radioulnar synostosis is one of the more common failures of separation of parts of the upper limb.

• The hand becomes maximally pronated, resulting in a joint lock on the wrist and radioulnar joint.

• It is one of two joints between the radius and ulna, the other being the proximal radioulnar articulation.

• Most examples of radioulnar synostosis are isolated (non-syndromic).

• The distal radioulnar articulation is the one of the two closest to the wrist and hand.

• The superior radioulnar joint shares joint capsule with the elbow joint but plays no functional role at the elbow.

• The wrist joint does not allow rotating motion, and the force is transferred to the forearm causing radioulnar rotation, eventually resulting in a joint lock on the radioulnar joint.