CRITOE gives us the order of ossification for the pediatric elbow – capitellum, radial head, internal epicondyle, trochlea, external epicondyle, and olecranon — typically occurring at year 1, 3, 5, 7, 9, and 11 – remember the order is the most important thing – all ossification centers should be accounted for. Make sure one is not missing – or where one has been “created” traumatically.