Table 2.
Comparison of cartilage thickness, denuded cartilage % (expressed as percentage cartilage coverage of cartilage bone interface area) and cartilage volume between no-knee OA and premorbid knee OA samples
| Plate | No-knee OA (n = 720)
|
Premorbid knee OA (n = 55)
|
p Value |
|---|---|---|---|
| Mean cartilage thickness (mm) (SD) | Mean cartilage thickness (mm) (SD) | ||
| Lateral tibia | 2.08 (0.30) | 2.04 (0.33) | 0.32 |
| Medial tibia | 1.73 (0.23) | 1.76 (0.25) | 0.36 |
| Central medial tibia | 2.32 (0.39) | 2.37 (0.47) | 0.38 |
| Central lateral femur | 1.72 (0.27) | 1.75 (0.35) | 0.58 |
| Central medial femur | 1.81 (0.31) | 1.81 (0.37) | 0.94 |
| Central part of central medial femur | 2.24 (0.46) | 2.23 (0.54) | 0.89 |
| Patella | 2.10 (0.43) | 1.96 (0.48) | 0.02 |
|
| |||
| % Cartilage coverage | % Cartilage coverage | p Value | |
|
| |||
| Lateral tibia | 99.1 | 98.0 | 0.43 |
| Medial tibia | 98.5 | 96.0 | 0.17 |
| Central lateral femur | 99.2 | 100.0 | 0.56 |
| Central medial femur | 99.4 | 97.6 | 0.20 |
| Patella | 87.7 | 80.4 | 0.13 |
|
| |||
| Mean cartilage volume (mm3) (SD) | Mean cartilage volume (mm3) (SD) | p Value | |
|
| |||
| Lateral tibia | 2198.83 (619.47) | 2228.80 (721.75) | 0.32 |
| Medial tibia | 2077.19 (566.02) | 2182.30 (652.33) | 0.36 |
| Central lateral femur | 1099.59 (343.19) | 1151.58 (418.75) | 0.38 |
| Central medial femur | 1057.58 (340.05) | 1106.01 (391.40) | 0.58 |
| Patella | 2780.40 (861.36) | 2618.47 (965.31) | 0.94 |