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Factors affecting the incidence of secondary osteoarthritis
| Characteristics | Osteoarthritis (n = 25) |
No osteoarthritis (n = 94) |
P value |
|---|---|---|---|
| Age, years (mean ± SD) | 29.3 ± 9.3 | 29.4 ± 9.3 | 0.958 |
| Gender | 0.543 | ||
| Males (n = 54) | 10 | 44 | |
| Females (n = 65) | 15 | 50 | |
| Pathological fracture at presentation | 0.504 | ||
| Yes (n = 35) | 6 | 29 | |
| No (n = 84) | 19 | 65 | |
| Tumor location | 0.554 | ||
| Distal femur (n = 70) | 16 | 54 | |
| Proximal tibia (n = 49) | 9 | 40 | |
| Recurrent at presentation | 0.862 | ||
| De novo (n = 84) | 18 | 66 | |
| Recurrent (n = 35) | 7 | 28 |
