Table 2.
Changes in related symptoms of syringomyelia caused by different aetiologies.
| Symptom |
Chiari I malformation
(n = 106) |
Revision
(n = 26) |
Craniocervical
(n = 132) |
PTS
(n = 15) |
|---|---|---|---|---|
| Occipital pain | ||||
| Preop | 4.6 ± 0.7 | 4.4 ± 0.7 | 4.6 ± 0.7 | 0 |
| Postop | 4.7 ± 0.7 | 4.4 ± 0.7 | 4.6 ± 0.7 | 0 |
| 3 mos | 4.7 ± 0.6 | 4.7 ± 0.6 | 4.7 ± 0.6 | 0 |
| 1 yr | 4.8 ± 0.4 | 4.7 ± 0.5 | 4.8 ± 0.4 | 0 |
| Neuropathic pain | ||||
| Preop | 4.1 ± 0.9 | 3.7 ± 1.0 | 4.0 ± 0.9 | 3.9 ± 1.2 |
| Postop | 4.2 ± 0.9 | 3.8 ± 1.0 | 4.2 ± 0.9 | 4.1 ± 1.0 |
| 3 mos | 4.4 ± 0.8 | 4.1 ± 0.8 | 4.4 ± 0.8 | 4.1 ± 1.0 |
| 1 yr | 4.4 ± 0.8 | 4.0 ± 0.9 | 4.3 ± 0.8 | 4.1 ± 1.0 |
| Dysesthesia | ||||
| Preop | 3.5 ± 1.1 | 3.1 ± 1.0 | 3.4 ± 1.1 | 3.3 ± 1.1 |
| Postop | 3.9 ± 1.0 | 3.3 ± 1.1 | 3.8 ± 1.0 | 3.7 ± 1.0 |
| 3 mos | 4.1 ± 1.0 | 3.4 ± 1.1 | 3.9 ± 1.0 | 3.7 ± 1.0 |
| 1 yr | 4.1 ± 1.0 | 3.4 ± 1.1 | 3.9 ± 1.1 | 3.7 ± 1.0 |
| Hypesthesia | ||||
| Pre-op | 3.6 ± 1.3 | 2.7 ± 1.0 | 3.4 ± 1.3 | 3.0 ± 0.9 |
| Post-op | 3.6 ± 1.3 | 2.8 ± 1.0 | 3.5 ± 1.3 | 3.1 ± 0.7 |
| 3 mos | 3.8 ± 1.2 | 2.9 ± 1.1 | 3.6 ± 1.2 | 3.3 ± 0.9 |
| 1 yr | 3.8 ± 1.2 | 3.0 ± 1.1 | 3.6 ± 1.3 | 3.3 ± 0.9 |
| Motor weakness # | ||||
| Pre-op | 4.3 ± 0.9 | 4.1 ± 0.8 | 4.2 ± 0.9 | 3.5 ± 1.1 |
| Post-op | 4.4 ± 0.8 | 4.2 ± 0.7 | 4.4 ± 0.8 | 3.6 ± 1.2 |
| 3 mos | 4.5 ± 0.7 | 4.3 ± 0.7 | 4.5 ± 0.7 | 3.9 ± 1.1 |
| 1 yr | 4.5 ± 0.8 | 4.3 ± 0.7 | 4.4 ± 0.8 | 4.0 ± 1.2 |
| Gait ataxia | ||||
| Pre-op | 4.5 ± 1.0 | 3.9 ± 1.1 | 4.4 ± 1.0 | 2.7 ± 1.5 |
| Post-op | 4.5 ± 0.9 | 4.0 ± 1.0 | 4.4 ± 1.0 | 2.5 ± 1.4 |
| 3 mos | 4.6 ± 0.8 | 4.0 ± 1.1 | 4.5 ± 0.9 | 2.7 ± 1.4 |
| 1 yr | 4.6 ± 0.8 | 4.2 ± 0.9 | 4.5 ± 0.8 | 2.7 ± 1.4 |
| Bladder function | ||||
| Pre-op | 4.8 ± 0.6 | 4.8 ± 0.6 | 4.8 ± 0.6 | 3.3 ± 1.4 |
| Post-op | 4.8 ± 0.6 | 4.8 ± 0.6 | 4.8 ± 0.6 | 3.3 ± 1.4 |
| 3 mos | 4.8 ± 0.5 | 4.9 ± 0.4 | 4.9 ± 0.5 | 3.6 ± 1.3 |
| 1 yr | 4.8 ± 0.5 | 4.9 ± 0.4 | 4.8 ± 0.5 | 3.6 ± 1.3 |
| Swallowing | ||||
| Pre-op | 4.8 ± 0.6 | 4.5 ± 0.7 | 4.8 ± 0.6 | 4.9 ± 0.3 |
| Post-op | 4.9 ± 0.3 | 4.8 ± 0.4 | 4.9 ± 0.4 | 4.9 ± 0.3 |
| 3 mos | 4.9 ± 0.3 | 4.8 ± 0.5 | 4.9 ± 0.4 | 4.9 ± 0.2 |
| 1 yr | 4.9 ± 0.3 | 4.7 ± 0.7 | 4.9 ± 0.4 | 4.9 ± 0.2 |
| Overall | ||||
| Better | 80(75.5%) | 20(77.0%) | 100(75.7%) | 9(60.0%) |
| Unchanged | 13(12.3%) | 2(7.6%) | 15(11.4%) | 1(6.7%) |
| Worsen | 13(12.2%) | 4(15.4%) | 17(12.9%) | 5(33.3%) |
*Unless otherwise specified, all values are expressed as the mean ± SD.
#Paralysis of the lower extremities indicates the muscle strength of the upper extremities.