Abstract
We discuss the pediatric patella, with an emphasis on diagnostic imaging. Topics include
normal patellar development, anatomical variants and their physiologic significance,
genetic syndromes that alter the appearance of the patella, physiology of patellar
tracking and stability, patellofemoral instability, and injury patterns and classification.
Recognition of appropriate development on imaging prevents diagnostic error and unnecessary
evaluation. Knowledge of the pertinent features of syndromes associated with morphological
patellar abnormalities can aid in generating a succinct and relevant differential
diagnosis. In patellofemoral instability, the patient's baseline anatomy, factors
that predispose to instability, and the specific injuries that occur as a result are
critical considerations for determining the course of treatment. Patellar sleeve fractures
are unique to pediatric patients, and timely identification is critical to achieving
an optimal treatment outcome.
Keywords
pediatric patella - imaging - variants - instability - injuries
