Postnatal Changes in Humerus Cortical Bone Thickness Reflect the Development of Metabolic Bone Disease in Preterm Infants

Figure 1

The humeral cortical bone thickness was measured at the middle of the diaphysis (a). M1, the breadth of the bone shaft; M2, the width of the intramedullary canal. Correlation between humeral cortical bone thickness and gestational age (b), birth weight (c), and the duration of mechanical ventilation (d).

(a)

(b)

(c)

(d)