Table 3.
µCT‐based mechanical properties | |||||||||
---|---|---|---|---|---|---|---|---|---|
Whole bone stiffness | Trabecular bone stiffness | E 11 | E 22 | E 33 | G 23 | G 31 | G 12 | ||
µMRI microstructural measurements | BV/TV | 0.44† | 0.54† | 0.37‡ | 0.45† | 0.46† | 0.41† | 0.34‡ | 0.35‡ |
Tb.N* (1/mm) | 0.19§ | 0.34‡ | 0.33‡ | 0.36‡ | 0.45† | 0.35‡ | 0.33‡ | 0.36‡ | |
Tb.Th* (mm) | NS | NS | NS | NS | NS | NS | NS | NS | |
Tb.Sp* (mm) | (−) 0.24§ | (−) 0.37‡ | (−)0.35‡ | (−) 0.35‡ | (−) 0.45† | (−) 0.34‡ | (−) 0.33‡ | (−) 0.34‡ | |
Tb.N (1/mm) | 0.27‡ | 0.48† | 0.45† | 0.51† | 0.56† | 0.50† | 0.44† | 0.48† | |
Tb.Th (mm) | 0.34‡ | 0.49† | NS | NS | NS | NS | NS | NS | |
Tb.Sp (mm) | (−) 0.32‡ | (−) 0.49† | (−) 0.41† | (−) 0.47† | (−) 0.50† | (−) 0.45† | (−) 0.39† | (−) 0.41† | |
Ct.Th (mm) | 0.32‡ | NS | NS | NS | NS | NS | NS | NS | |
BS/BV (1/mm) | (−) 0.37‡ | (−) 0.21§ | NS | NS | NS | NS | NS | NS | |
SMI | (−) 0.41† | (−) 0.49† | (−) 0.39† | (−) 0.50† | (−) 0.45† | (−) 0.47† | (−) 0.36‡ | (−) 0.39† | |
DA | 0.16§ | NS | NS | NS | NS | NS | NS | NS | |
Conn.D (1/mm3) | NS | 0.39† | 0.40† | 0.48† | 0.51† | 0.48† | 0.40† | 0.47† | |
µCT microstructural measurements | BV/TV | 0.35‡ | 0.59† | 0.53† | 0.69 | 0.67† | 0.65† | 0.53† | 0.61† |
Tb.N* (1/mm) | NS | 0.23§ | 0.31‡ | 0.36‡ | 0.48† | 0.36‡ | 0.32‡ | 0.36‡ | |
Tb.Th* (mm) | 0.27‡ | 0.34‡ | 0.26‡ | 0.48† | 0.32‡ | 0.43† | 0.25‡ | 0.33‡ | |
Tb.Sp* (mm) | (−) 0.23§ | (−) 0.38‡ | (−) 0.38† | (−) 0.40† | (−) 0.50† | (−) 0.38† | (−) 0.37‡ | (−) 0.39† | |
Ct.Th (mm) | 0.34‡ | NS | NS | NS | NS | NS | NS | NS | |
BS/BV (1/mm) | (−) 0.29‡ | (−) 0.43† | (−) 0.33‡ | (−) 0.55† | (−) 0.43† | (−) 0.51† | (−) 0.33‡ | (−) 0.42† | |
SMI | (−) 0.32‡ | (−) 0.56† | (−) 0.47† | (−) 0.64† | (−) 0.57† | (−) 0.63† | (−) 0.47† | (−) 0.54† | |
DA | NS | NS | NS | NS | NS | NS | NS | NS | |
Conn.D (1/mm3) | NS | NS | NS | NS | 0.21§ | NS | NS | NS |
Note: (–) indicates negative correlation.
p < .001.
p < .01.
p < .05.
NS: p > .05.