Radial head subluxation is also known as nursemaid’s elbow or as pulled elbow. Dislocation of the radius bone present in the elbow is called radial head subluxation. This condition is very common among children below 5 years of age as their bones and muscles are still in the developing stage. This condition usually occurs when a child is pulled up too hard by the arm, but can also occur due to a fall or swinging your child by the arms. Some of the symptoms associated with radial head subluxation are pain in the elbow, your child may hold the elbow close to the abdominal area or movement of your child’s elbow is reduced.