IVDD | Recurrence cervical | Recurrence thoracolumbar | ||||||
---|---|---|---|---|---|---|---|---|
1st (n) | Recurr (n) | Sus (n) | Con (n) | 1st (n) | Recurr (n) | 1st (n) | Recurr (n) | |
N | 127 | 67 | 36 | 31 | 51 | 24 | 76 | 43 |
Gender | 127 | 67 | 36 | 31 | 51 | 24 | 76 | 43 |
Male | 73 | 38 | 18 | 20 | 34 | 16 | 39 | 22 |
Female | 54 | 29 | 18 | 11 | 17 | 8 | 37 | 21 |
Weight | 127 | 67 | 36 | 31 | 51 | 24 | 76 | 43 |
Age | 124 | 65 | 35 | 30 | 48a | 22a | 76b | 43b |
≤ 3 years | 46 | 31 | 16 | 14 | 51a | 24a | 33b | 20b |
4 years | 22 | 12 | 9 | 3 | 26a | 15a | 12b | 8b |
5 years | 29 | 14 | 6 | 8 | 8a | 4a | 19b | 10b |
≥ 6 years | 27 | 8 | 4 | 5 | 6a | 2a | 12b | 5b |
Localization | 127 | 67 | 36 | 31 | ||||
Cervical | 51 | 24 | 12 | 12 | ||||
Thoracolumbar | 76 | 43 | 24 | 19 | ||||
Severity grade | 127 | 67 | 36 | 31 | 51a | 24a | 76b | 43b |
1 | 30a | 18a | 5b | 2b | ||||
2 | 11a | 4a | 19b | 12b | ||||
3 | 9a | 1a | 30b | 19b | ||||
4 | 1a | 1a | 19b | 8b | ||||
5 | 0a | 0a | 3b | 2b | ||||
Malformation | 127 | 67 | 36 | 31 | 51 | 24 | 76 | 43 |
Less than 2 IVDS | 18 | 11 | 8 | 3 | 1 | 1 | 17 | 10 |
More than 2 IVDS | 28 | 16 | 9 | 7 | 3 | 3 | 25 | 13 |
No malformation | 81 | 40 | 19 | 21 | 47 | 20 | 34 | 20 |
Disc degeneration | 127 | 67 | 36 | 31 | 51 | 24 | 76 | 43 |
Degenerated disc | 99 | 50 | 29 | 22 | 37 | 14 | 62 | 36 |
No degenerated disc | 28 | 17 | 7 | 9 | 14 | 10 | 14 | 7 |
Disc fenestration | 117 | 67 | 36 | 31 | 51 | 24 | 76 | 43 |
Disc fenestration | 17 | 7 | 34 | 26 | 4 | 1 | 11 | 4 |
No disc fenestration | 110 | 60 | 2 | 5 | 47 | 23 | 65 | 39 |