Table 2.
Demographic and preoperative data of Chiari I patients and comparison between sutured and non-sutured duraplasty groups
| Total (n = 93) | Duraplasty sutured (n = 56) | Duraplasty non-sutured (n = 31) | P value | |
|---|---|---|---|---|
| Patient characteristics | ||||
| Mean age in years (SD) | 26.1 (19.2) | 21.0 (17.6) | 32.3 (19.9) | 0.008* |
| Age groups | 0.003* | |||
| < 16 years | 35 (37.6%) | 29 (51.8%) | 6 (19.4%) | |
| ≥ 16 years | 58 (62.4%) | 27 (48.2%) | 25 (80.6%) | |
| Sex | 0.437 | |||
| Male | 24 (25.8%) | 17 (30.4%) | 7 (22.6%) | |
| Female | 69 (74.2%) | 39 (69.6%) | 24 (77.4%) | |
| Magnetic resonance imaging | ||||
| Presence of hydrocephalus | 2 (2.2%) | 2 (3.6%) | 0 (0.0%) | 0.536 |
| Mean extent of tonsillar herniation in millimeters (SD) | 13.9 (5.4) | 13.9 (4.6) | 15.0 (6.7) | 0.368 |
| Syringomyelia | 37 (39.8%) | 27 (48.2%) | 10 (32.3%) | 0.149 |
| Location of syrinx | ||||
| Cervical | 13 (14.0%) | 7 (12.5%) | 6 (19.4%) | 0.531 |
| Thoracic | 4 (4.3%) | 4 (7.1%) | 0 (0.0%) | 0.292 |
| Cervicothoracic | 19 (20.4%) | 15 (26.8%) | 4 (12.9%) | 0.179 |
| Holocord | 1 (1.1%) | 1 (1.8%) | 0 (0.0%) | 1.00 |
| Presence of scoliosis | 10 (10.8%) | 10 (17.9%) | 0 (0.0%) | 0.012* |