Comparison of first five principal component scores between eburnated and non-eburnated femora: eburnation group split by location of eburnation
| Component | % of total variance | Non-eburnated (n=52) mean (SD) | Tibiofemoral eburnation (n=3‡) mean (SD) | Patellofemoral eburnation (n=13) mean (SD) | t value† | p value |
|---|---|---|---|---|---|---|
| 1st | 21 | −0.0019 (0.036) | 0.0067 (0.026) | 0.0063 (0.032) | −0.75 | 0.457 |
| 2nd | 18 | −0.0062 (0.031) | 0.0384 (0.035) | 0.0160 (0.027) | −2.35 | 0.022 |
| 3rd | 12 | 0.0020 (0.023) | −0.0243 (0.038) | −0.0023 (0.037) | 0.5163-150 | 0.6083-150 |
| 4th | 9 | 0.0015 (0.023) | −0.0188 (0.022) | −0.0016 (0.023) | 0.426 | 0.671 |
| 5th | 8 | −0.0014 (0.021) | −0.0090 (0.034) | 0.0079 (0.019) | −1.44 | 0.155 |
↵3-150 Resulting from an unpooled t test.† Resulting from a comparison of non-eburnated femora with patellofemoral eburnated femora. † Including one femur with tibiofemoral and patellofemoral eburnation.