Table 3.
Medullary Volumetric Bone Mineral Density (vBMD) and Mechanical Characteristics of the Femoral Neck
SHAM (a) | ORX (b) | ORX+AN (c) | ORX+TE (d) | ORX+TE+AN (e) | ORX+TREN (f) | ORX+TREN+AN (g) | |
---|---|---|---|---|---|---|---|
Medullary vBMD, g/cm2 | 0.51 ± 0.01b*,c* | 0.40 ± 0.02a*,d*,e*,f*,g* | 0.42 ± 0.01a*,d*,e*,g* | 0.52 ± 0.01b*,c* | 0.52 ± 0.02b*,c* | 0.49 ± 0.02b* | 0.50 ± 0.02b*,c* |
Failure Load, N | 148 ± 4 | 127 ± 9d | 124 ± 7d,f | 158 ± 7b,c | 144 ± 8 | 156 ± 7c | 144 ± 4 |
Displacement, mm | 0.73 ± 0.08 | 0.59 ± 0.05 | 0.64 ± 0.06 | 0.82 ± 0.07 | 0.71 ± 0.08 | 0.86 ± 0.17 | 0.81 ± 0.07 |
Stiffness, N/mm | 212 ± 18 | 220 ± 25 | 206 ± 25 | 197 ± 15 | 212 ± 23 | 203 ± 24 | 184 ± 17 |
Values are means SE of n = 8–11/group. Stiffness was calculated using least mean square fitting of the best fit line from the force-displacement curves. Letter a–g indicate differences from respectively labeled groups at p < 0.05 or *p < 0.01 (a = vs. SHAM, b = vs. ORX, c = vs. ORX + AN, d = vs. ORX + TE, e = vs. ORX + TE + AN, f = vs. ORX + TREN, g = vs. ORX + TREN + AN).