Prevalence of signs of enlarged dural sac in the 4 groups*
| Criteria | Fulfilling Ghent (No.) (%) | |||
|---|---|---|---|---|
| Independent of DE (n = 73) | Dependent on DE (n = 14) | Suspected MFS, Not Fulfilling Ghent (n = 18) | Controls (n = 101) | |
| 1) Anterior meningocele | 27 (37) | 2 (140 | 0% | 0% |
| 2) DSD sacrum > DSD L4 | 38 (52) | 4 (29) | 1 (6) | 5 (5) |
| 3) Herniations of ≥1 nerve root sleeves | 53 (73) | 10 (71) | 2 (11) | 1 (1) |
| 4) DSR L5 > 0.48 (Oosterhof et al6) | 41 (56) | 13 (93) | 1 (6) | 19 (19) |
| 5) DSR S1 > 0.57 (Oosterhof et al6) | 45 (62) | 11 (85) | 1 (6) | 12 (12) |
| Presence of ≥1 of above findings | 65 (89) | 14 (100) | 3 (17) | 24 (24) |
| Only DSR L5 > 0.48 and/or S1 > 0.57 | 4 (5) | 4 (29) | 1 (6) | 18 (18) |
| 6) DSR S1 > 0.59 (current study) | 43 (59) | 11 (85) | 1 (6) | 7 (7) |
| Presence of DE replacing criteria 4 and 5 with 6 | 63 (86) | 12 (86) | 3 (17) | 9 (9) |
Note:—MES indicates Marfan Syndrome.
* * Expressed as number and percentage.