Ossification centers of the elbow

Last revised by Francis Deng on 25 Nov 2023

There are six ossification centers of the elbow that appear and develop in a relatively reproducible fashion, and are key to assessment of the pediatric elbow radiograph. Timing of their appearance varies in the literature but an approximation is given below. A useful mnemonic to remember the order of development is CRITOL or CRITOE (see video below).

Video

See also

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Frontal
    Drag here to reorder.
  • Lateral
    Drag here to reorder.
  • Labeled anatomy (illustration)
    Drag here to reorder.
  • Labeled anatomy (illustration)
    Drag here to reorder.
  • Age 2
    Drag here to reorder.
  • Age 4
    Drag here to reorder.
  • Age 5
    Drag here to reorder.
  • Age 9
    Drag here to reorder.
  • Age 11
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.