Greulich and Pyle method

The Greulich and Pyle method is one of the two main ways to assess the bone age of children.

Both main methods of bone age assessment require a left hand and wrist radiograph. The Greulich and Pyle method makes use of a standard bone age atlas that the reporter can compare their image to and make an estimation of bone age.

This is different to the Tanner-Whitehouse method which assesses and scores each bone before calculating an estimated age based on the assessed bones.