Elbow ossification (mnemonic)

Last revised by Francis Deng on 25 Nov 2023

Mnemonics for elbow ossification include CRITOE and CRITOL. These are essentially the same, apart from the terminal letter which represents the External or Lateral epicondyle.

CRITOL is the same as CRITOE apart from the final letter, which refers to the lateral epicondyle rather than external.

Cases and figures

  • Elbow ossification centres
  • Age 2 - C
  • Age 4 - CR
  • Age 5 - CRI
  • Age 9 - CRITO
  • Age 11 - CRITOE

Imaging differential diagnosis

  • Medial epicondyle avulsion
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