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Results according to Severin classification for radiographic evaluation
| Severin (%) | Young | Middle | Older | Total |
|---|---|---|---|---|
| Ia | 94(45.6) | 196(34.5) | 8(9.7) | 298(34.5) |
| Ib | 36(17.5) | 158(27.8) | 13(15.9) | 207(23.9) |
| II | 42(20.4) | 177(30.7) | 8(9.7) | 227(26.3) |
| III | 25(12.1) | 31(5.4) | 13(15.9) | 69(8.0) |
| IV | 9(4.4) | 8(1.4) | 6(7.3) | 23(2.7) |
| V | 0 | 6(1.2) | 21(25.6) | 27(3.1) |
| VI | 0 | 0 | 13(15.9) | 13(1.5) |
