Table 4 Mean (Standard Deviation) of HR-pQCT Parameters (N = 90).

From: Prognostic Value of Bone Mineral Density on Curve Progression: A Longitudinal Cohort Study of 513 Girls with Adolescent Idiopathic Scoliosis

Bone Parameters

Not-Progressed N = 83

Progressed N = 7

p-value (t-test)

Bone Morphometry

 Tot Area (cm2)

184.1 (32.2)

176.8 (13.7)

0.555

 Tb.Ar (cm2)

148.9 (33.4)

150.2 (15.7)

0.920

 CrAr/TotAr (%)

15 (7.6)

8 (6.3)

0.023

 CtPm

54.9 (5.8)

54.61 (2.3)

0.874

 CtTh

0.5 (0.2)

0.3 (0.2)

0.015

Volumetric BMD (SD)

 Dtot (mgHA/cm3)

256.3 (60.3)

212.3 (45.8)

0.063

 Dcort (mgHA/cm3)

696.6 (77.4)

597.4 (93.2)

0.002

 Dtrab (mgHA/cm3)

145.3 (28.4)

137.9 (26.5)

0.505

Trabecular Bone Micro-architecture (SD)

 TrN

1.69 (0.22)

1.82 (0.28)

0.178

 BV/TV (%)

12.1 (2.4)

11.5 (2.2)

0.503

 Tb.Th

0.07 (0.01)

0.06 (0.01)

0.021

 Tb.Sp

0.53 (0.09)

0.50 (0.11)

0.415

  1. BV/TV = bone volume over total volume, CrAr = cortical bone area, CtPm = cortical (periosteal) perimeter, CtTh = cortical thickness, Dcort = volumetric density of cortical bone measured at distal radius, Dtrab = volumetric density of trabecular bone measured at distal radius, Dtot = overall volumetric density measured at distal radius, Tb.Ar = trabecular bone area, Tb.Sp = trabecular spacing, Tb.Th = trabecular thickness, Tot Area = total bone area, TrN = trabecular number.
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