Bruno Cunha De Medeiros MD, Abstract Co-Author: Nothing to Disclose

Marcel Vieira Da Nobrega MD, Presenter: Nothing to Disclose

Ronald Meira Castro Trindade MD, Abstract Co-Author: Nothing to Disclose

Frederico C. Miranda MD, Abstract Co-Author: Nothing to Disclose

Carlos Henrique Longo MD, Abstract Co-Author: Nothing to Disclose

Laercio A. Rosemberg MD, Abstract Co-Author: Nothing to Disclose

Marcelo Pires Prado MD, Abstract Co-Author: Nothing to Disclose

Hamilton Guidorizzi MD, Abstract Co-Author: Nothing to Disclose

Ariel Filipe Wuerges De Aquino MD, Abstract Co-Author: Nothing to Disclose

Marcelo B. Funari MD, Abstract Co-Author: Nothing to Disclose

To determine the prevalence of stress fractures in children younger than 10 years referred for MR evaluation of pain in the ankle and foot and describe which are the most affected bones.

191 consecutive ankle and foot MR scans performed from jan/2006 to feb/2009 in children under 10 year old reffered for evaluation of pain were retrospectively accessed. All studies were reviewed by 2 experienced musculoskeletal radiologists. Stress fracture cases were selected and reviewed.

Of the 191 MR studies performed, 10,4 % were diagnostic for stress fractures. 70% of the patients affected were boys. Talar fractures were the most frequent (25,7%), followed by fractures of the calcaneus (17,1%). Other bones involved included the metatarsals, specially the second and the third each representing 11,4% of the cases. The cuboid (8,5%), navicular (5,7%), the lateral (5,7%) and intermediate (5,7%) cuneiforms were also affected. The level of activity of the patients was high in all cases, most involved in sports practice. One case was associated with video-games. Selected images will be used to illustrate the findings, along with corresponding clinical correlation.

- Stress fracture was not a rare diagnosis in children with pain in the ankle and foot referred for MRI evaluation. - Bones of the hindfoot were the most frequently affected, followed by the metatarsals.

- Stress fracture is a diagnosis to be considered in active children with ankle and foot pain. Sports and even video games should be remembered as possible associations.

Medeiros, B, Da Nobrega, M, Trindade, R, Miranda, F, Longo, C, Rosemberg, L, Prado, M, Guidorizzi, H, Aquino, A, Funari, M, Ankle and Foot Stress Fractures in Children.  Radiological Society of North America 2010 Scientific Assembly and Annual Meeting, November 28 - December 3, 2010 ,Chicago IL. http://archive.rsna.org/2010/9013033.html