Fig. 1

a-c Radiographs of the wrist in 3 females aged 10-11 years. Cortical thickness based on metacarpals 2-4 (arrows) was assessed using BoneXpert BHI Standard deviation score (SDS), classified on a 0-5 scale, exemplified by (a) SDS of +1.8, (b) SDS of 0 and (c) SDS of -2.4