A chart is presented to assist with the assessment and treatment of patients with growth-related deformities. It is based on anthropometric values from five published sources and relates sitting height to stature, limb length, the radiographic lengths of the leg bones and the lengths of the feet and hands. It has proved useful in the prediction of leg-length discrepancies, in the diagnosis of cases of short stature, and in the assessment of spinal shortening from scoliosis.

We report our experience of lengthening by over 30% a total of 117 lower limbs in achondroplastic patients. We have compared four methods: transverse osteotomy, oblique osteotomy, callotasis of the shaft and chondrodiatasis of the epiphysis. Chrondrodiatasis of the femur and callotasis of the tibia are the techniques which gave fewest complications.