Table 4.
BMD Around Knee Between the Two Groups with Different Degrees of WOMAC Index
| KOA with OP | KOA | P | Statistical Methods | |
|---|---|---|---|---|
| Severe | ||||
| Medial DF BMD | 178.99±63.32 | 240.01±60.67 | <0.001 | T-test |
| Lateral DF BMD | 143.39±51.00 | 218.63±47.90 | <0.001 | T-test |
| Medial PT BMD | 172.56±66.86 | 225.28±51.61 | 0.001 | T-test |
| Lateral PT BMD | 108.50±43.53 | 186.28±42.87 | <0.001 | T-test |
| Patella BMD | 91.51±43.58 | 161.14±41.52 | <0.001 | T-test |
| DF M/L BMD | 1.14(0.98~1.58) | 1.07(0.91~1.25) | >0.05 | Mann–Whitney U-test |
| PT M/L BMD | 1.63(1.18~2.09) | 1.15(0.98~1.56) | 0.002 | Mann–Whitney U-test |
| HKA angle | 7.58±5.39 | 2.97±8.36 | 0.015 | T-test |
| Moderate | ||||
| Medial DF BMD | 162.14±60.71 | 229.56±50.55 | <0.001 | T-test |
| Lateral DF BMD | 148.06±48.18 | 236.77±63.92 | <0.001 | T-test |
| Medial PT BMD | 148.44±61.47 | 189.93±48.85 | 0.007 | T-test |
| Lateral PT BMD | 102.88±33.65 | 163.99±59.17 | <0.001 | T-test |
| Patella BMD | 104.30±35.34 | 160.43±44.71 | <0.001 | T-test |
| DF M/L BMD | 0.98(0.89~1.48) | 0.99(0.82~1.14) | >0.05 | Mann–Whitney U-test |
| PT M/L BMD | 1.40(0.99~2.06) | 1.20(0.88~1.73) | >0.05 | Mann–Whitney U-test |
| HKA angle | 4.88±7.17 | 2.70±5.75 | >0.05 | T-test |
Abbreviations: KOA, knee osteoarthritis; OP, osteoporosis; P, p value; BMD, bone mineral density; DF: distal femur, PT, proximal tibia; M/L, Medial/Lateral; HKA, Hip-Knee-Ankle angle.