Skeletal mineralization accelerated markedly at puberty in the spine ( 0.077 vs 0.027 gm/cm2 per year , peripubertal vs prepubertal ) and greater trochanter ( 0.050 vs 0.027 gm/cm2 per year ) , less markedly in the femoral neck ( 0.047 vs 0.030 gm/cm2 per year ) , and only slightly in the radius .
