emur and fourth lumbar vertebra after removal of soft tissues and overnight fixation in 4% paraformaldehyde. The distal metaphysis was scanned with a Skyscan 1072 micro-CT instrument (Skyscan, Antwerp, Belgium). Image acquisition was performed at 100 kV and 98 μA, with a 0.9° rotation between frames. The two-dimensional images were used to generate three-dimensional reconstructions to obtain quanti