Table 3.
The median values (standard error) of ×100 magnification of cortical bone parameters in quadrants of the subtrochanteric femoral shaft
| Parameters | MED | ANT | LAT | POST | H (df) | P |
|---|---|---|---|---|---|---|
| On.Ar/Ct.Ar (%)1 | 15.5 (0.8) | 15.3 (0.7) | 14.6 (0.8) | 12.6 (0.8)* | 11.4 (3) | 0.01 |
| On.Pm (μm)2 | 652.1 (9.3) | 667.1 (8.3) | 644.0 (9.3) | 667.8 (12.0) | 2.0 (3) | 0.564 |
| Min.On.Dm (μm)3 | 153.2 (2.2) | 159.2 (2.0) | 155.2 (2.0) | 157.1 (2.8) | 1.9 (3) | 0.601 |
| Max.On.Dm (μm)4 | 200.0 (2.9) | 202.3 (2.5) | 195.9 (3.0) | 206.0 (3.8) | 3.8 (3) | 0.285 |
| W.Wi (μm)5 | 71.1 (1.1) | 72.2 (1.1) | 70.4 (1.1) | 71.1 (1.4) | 0.2 (3) | 0.973 |
| N.On/Ct.Ar (#/mm2)6 | 92.5 (3.6) | 93.0 (3.8) | 99.5 (4.6) | 78.0 (4.1)* | 13.0 (3) | 0.005 |
| H.Ar (μm2)7 | 1340.0 (76.2) | 1515.4 (47.8) | 1284.2 (55.9) | 1638.7 (68.4)† | 9.8 (3) | 0.021 |
| H.Pm (μm)8 | 163.1 (4.0) | 168.0 (2.9) | 158.5 (3.6) | 176.9 (4.1)‡ | 10.7 (3) | 0.014 |
| N.Po/Ct.Ar (#/mm2)9 | 43.0 (2.9) | 37.0 (2.7) | 37.0 (2.9) | 48.5 (2.3)* | 18.9 (3) | <0.05 |
| Ct.Po1 (%)10 | 2.8 (0.4) | 3.0 (0.3) | 2.7 (0.6) | 5.3 (0.4)* | 21.3 (3) | <0.001 |
| Ct.Po2 (%)11 | 3.9 (0.4) | 4.0 (0.3) | 3.6 (0.6) | 6.1 (0.4)* | 20.0 (3) | <0.001 |
1Osteonal Area per Cortical Bone Area (%). 2Mean Osteonal Perimeter (μm). 3Min Osteonal Diameter (μm). 4Max Diameter Diameter (μm). 5Mean Wall Width (μm). 6Osteon Number per Cortical Bone Area (#/mm2). 7Haversian canal Area (μm2). 8Mean Haversian canal Perimeter (μm). 9Pore Number per Cortical Bone Area (#/mm2) (complete Haversian canal excluded). 10Cortical Porosity1 (%) (complete Haversian canal excluded). 11Cortical Porosity2 (%) (complete Haversian canal included). P‐values were obtained with the Kruskal–Wallis test. Significance differences (P ≤ 0.05) are highlighted in bold. *Significant difference as compared with the other three quadrants. †Significant difference as compared with lateral quadrant. ‡Significant difference as compared with anterior and lateral quadrants. The post hoc multiple comparison was performed with Mann–Whitney tests.