Trabecular Bone Microarchitectural Properties in the Secondary Spongiosa: A) Trabecular Number (Tb.N), B) Trabecular Thickness (Tb.Th), C) Trabecular Separation (Tb.Sp), D) Trabecular Density (Tb Density), and E) Structural Model Index (SMI). Values are Means ± S.E. *p<0.05 vs. all other age groups; **p<0.05 vs. 12-months; †p=0.06 vs. 24-months; ††p=0.06 vs. all other age groups. ‡p<0.05 vs. 6- months and 24-months. AU denotes arbitrary units. 1-month, n=9; 6-months, n=9; 12-months, n=10; 18- months, n=9; 24-months, n=11.