supracondylar foramen humerus

An olecranon foramen, also known as septal aperture or supratrochlear foramen, is a common normal anatomical variant of the distal humerus.

Epidemiology

There is a wide variation of incidence, occurring between 5% to 50% of the population depending on ethnicity, being more common in individuals of African descent than Caucasians, and is most often bilateral .

Gross anatomy

The olecranon foramen is an aperture formed by the failure of ossification of the septum that separates the coronoid and olecranon fossae.

Related pathology

  • presence may put patients at increased risk of distal humerus fractures
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