Table 1.
Patient demographic data (n=24)
| Variable | Value |
|---|---|
| Age (yr) | 65.4 ± 15.4 (16–87) |
| Sex | |
| Women | 20 (83.3) |
| Men | 4 (16.7) |
| Body mass index (kg/m2) | 21.4 ± 2.7 |
| Follow-up period (mo) | 59.9 ± 30.3 |
| Duration of symptoms (mo) | 17.5 ± 23.4 |
| Preoperative neurological status | |
| With paralysis (MMT ≤ 3) | 8 (33.3) |
| Without paralysis (MMT ≥ 4) | 16 (66.7) |
| Tumor level | |
| Cervical | 6 (25.0) |
| Thoracic | 17 (70.8) |
| Lumbar | 1 (4.2) |
| Tumor length (mm) | 18.2 ± 5.2 |
| Tumor occupation ratio (%) | 66.3 ± 14.5 |
| Tumor localization | |
| Dorsal | 8 (33.3) |
| Lateral | 10 (41.7) |
| Ventral | 5 (20.8) |
| Unable to classify due to massive tumor size | 1 (4.2) |
| Contrast MRI finding (n = 21) | |
| Heterogeneous | 6 (28.6) |
| Homogeneous | 15 (71.4) |
| Calcification in CT scan (n = 23) | |
| Positive | 15 (65.2) |
| Negative | 8 (34.8) |
| Maximum of Hounsfield unit value | 628.7 ± 423.4 |
| Histological subtype (n = 22) | |
| Meningothelial | 10 (45.5) |
| Psammomatous | 6 (27.3) |
| Transitional | 5 (22.7) |
| Clear cell | 1 (4.5) |
| Ki-67 index | 2.4 ± 1.9 |
| Surgical procedure | |
| Simpson grade 1 | 17 (70.8) |
| Simpson grade 2 | 7 (29.2) |
Values are presented as mean±standard deviation (range) or number (%).
MMT, manual muscle testing; MRI, magnetic resonance imaging; CT, computed tomography.