An elbow fracture is a break in one or more of the bones that make up the elbow joint. The bones in the elbow joint are:

  • Humerus—the upper arm bone
  • Ulna—the larger of the forearm bones
  • Radius—the smaller bone in the forearm

The Elbow Joint
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Elbow fractures are caused by trauma to the elbow bones. Trauma can be caused by:

  • Falling on an outstretched arm
  • Falling directly on the elbow
  • Experiencing a direct blow to the elbow
  • Twisting the elbow beyond the normal range of motion