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Demographic information of the patients.
| Age/ gender | Diagnosis | Time to revision (y) | Cup abduction angle | Cup anteversion angle | Stem anteversion angle | Total penetration (mm) | Penetration rate (mm/y) |
|---|---|---|---|---|---|---|---|
| 53/ female | OA | 10.4 | 42 | 12 | 17 | 1.45 | 0.14 |
| 44/ male | ION | 11.3 | 43 | 7 | 23 | 3.42 | 0.30 |
OA, osteoarthritis; ION, idiopathic osteonecrosis of the femoral head.
