While looking an AP view of an elbow radiograph (x-ray), the medial epicondylar epiphyseal (MEE) angle is measured by:  

• Drawing a straight line down through the middle of the humeral shaft and then a line along the medial epicondylar growth plate.

• The angle between the humeral shaft line and the epicondylar growth plate line should be between 34 to 42 degrees after a reduction of a fracture. 
  
• This angle may not be accurate in pediatric patients < 3 years of age since they have a more rounded medial humeral metaphysis.

To see other related content select from an item below:

• Humerotrochlear Angle
  
• Anterior Humeral Line
  
• Baumann's Angle
  

1. Biyani A, et al: Determination of medial epicondylar epiphyseal angle for supracondylar humeral fractures in children. J Pediatr Orthop 1993;13:94-97.

Last Updated:  June 2015