Moseley straight-line graph. Example shown is boy with idiopathic hemiatrophy observed clinically for 4 consecutive years. In 2000, longer leg measured 70 cm, shorter leg was 67 cm, and bone age was 9 years. Additional scanograms and bone age radiographs are plotted as shown. Horizontal straight line (A) extends to maturity line with equal number of skeletal ages above and below line. At skeletal maturity, longer leg is projected to measure 92 cm, and shorter leg is projected to measure 87 cm. Broken line (B) represents projected growth of longer leg if epiphysiodeses of distal femur and proximal tibia are performed when longer leg reaches 84 cm in length, obtaining limb equalization by skeletal maturity.