This injury happens when the ligament attached to the inner side of the elbow starts to pull one of the growth plates away from the rest of the bone. Growth plates are weak and easily injured when a child's bones are still growing. Certain types of throwing may lead to this problem, such as:
Throwing too hard and too often
Increasing the number of pitches per week too quickly
Throwing too many curves or sliders at a young age
Changing to a league where the pitcher's mound is farther away from home plate or the mound is raised
This problem is more common in boys who are 10 to 15 years of age. The risk is higher in those who are pitchers, especially those who throw curve balls or sliders.
Problems may be:
Pain around the bony knob on the inner side of the elbow
Pain when throwing overhand
Pain with gripping or carrying heavy objects
The doctor will ask about your child's symptoms and health history. You will also be asked about your child's activities. A physical exam will be done. It will focus on the elbow.
Griffith TB, Kercher J, et al. Elbow Injuries in the Adolescent Thrower. Curr Rev Musculoskelet Med. 2018 Mar;11(1):35-47.
Management of throwing injuries of the elbow. EBSCO DynaMed website. Available at: https://www.dynamed.com/management/management-of-throwing-injuries-of-the-elbow. Accessed January 29, 2021.
Throwing injuries in the elbow in children. American Academy of Orthopaedic Surgeons Ortho Info website. Available at: https://orthoinfo.aaos.org/en/diseases--conditions/throwing-injuries-in-the-elbow-in-children. Accessed January 29, 2021.
Why counting pitches counts. The National Athletic Trainers' Association website. Available at: http://www.nata.org/nata-news-blog/why-counting-pitches-counts. Accessed January 29, 2021.
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