Table 6.
Comparison of radiological measurements and CPAK knee phenotypes of this study population with previously published literature of other ethnicities
| MacDessi et al. (Europe + Australia) | Toyooka et al. (Japan) | C.E. Hsu et al. (Taiwan) | This study | |||
|---|---|---|---|---|---|---|
|
N = 500 Knees Healthy subjects |
N = 500 Arthritic group |
N = 500 Knees Arthritic population |
N = 214 Healthy subjects |
Normal group (n = 250; total = 500 knees) | Osteoarthritic group (n = 250; total = 500 knees) | |
| Mean age in years (SD) | (Range 20–27) | 66 (44–88) | 75.1 (8.0) | 41.3 (18.6) | 26.77 (4.51) | 62.25 (8.19) |
| Gender | ||||||
| Male | 125 (50%) | 190 (38%) | 95 (19%) | 111 (52%) | 109 (43.6%) | 76 (30.4%) |
| Female | 125 (50%) | 310 (62%) | 405 (81%) | 103 (48%) | 141 (56.4%) | 174 (69.6%) |
| Mean aHKA in degrees (SD) | – 0.9 (2.5) | – 0.8 (2.8) | – 3.5 (4.8) | – 1.5 (3.2) | – 1.74 (3.52) | – 6.85 (4.95) |
| Mean JLO in degrees (SD) | NA | NA | 172.4 (3.8) | 173.1 (3.3) | 176.02 (4.49) | 173.5 (4.96) |
| mLDFA | 87.9 (1.74) | 88.1 (2.1) | 88.0 (2.9) | 87.3 (2.4) | 88.88 (2.95) | 90.2 (3.56) |
| mMPTA | 87.0 (2.07) | 87.3 (2.1) | 84.4 (3.3) | 85.8 (2.2) | 87.14 (2.76) | 83.3 (3.44) |
| Type I | 26.4% | 19.4% | 53.8% | 36.4% | 21.2% | 58.8% |
| Type II | 39.2% | 32.2% | 25.4% | 39.3% | 25.6% | 13.8% |
| Type III | 9.8% | 15.4% | 8.2% | 13.6% | 6% | 1.4% |
| Type IV | 5.4% | 9.8% | 7.2% | 5.6% | 16.8% | 18.2% |
| Type V | 15.4% | 14.6% | 4.4% | 4.7% | 19.6% | 3.4% |
| Type VI | 3.4% | 7.4% | 1.0% | 0.5% | 5.8% | 1% |
| Type VII | 0.2% | 0.6% | 0 | 0 | 2.4% | 2.8% |
| Type VIII | 0 | 1.6% | 0 | 0 | 1.8% | 0.6% |
| Type IX | 0.2% | 0.4% | 0 | 0 | 0.8% | 0 |