Table 4.
Outcome data.
| Variable | All Patients (n = 129) |
Elderly (n = 46) |
Non-Elderly (n = 83) |
p-Value |
|---|---|---|---|---|
| Time to initial follow-up (months) | 4.6 (2.7–10) | 4.7 (3.2–9.2) | 4.4 (2.7–9.8) | 0.516 |
| Long-term follow-up time (years) | 8.2 (0.3–16) | 6.8 (0.3–16) | 8.6 (3.1–16) | 0.117 |
| Postoperative complication | 10 (7.8%) | 1 (0.8%) | 9 (11%) | 0.077 |
| Tethered spinal cord | 1 | 1 | 0 | - |
| Wound infection | 3 | 0 | 3 | - |
| Pneumonia | 1 | 0 | 1 | - |
| Cerebrospinal fluid leak | 2 | 0 | 2 | - |
| Kyphosis | 2 | 0 | 2 | - |
| Myocardial infarction | 1 | 0 | 1 | - |
| Reoperation | 4 (3.1%) | 2 (4.3%) | 2 (2.4%) | 0.543 |
| Tethered spinal cord | 1 | 1 | 0 | - |
| Tumor resection (local tumor recurrence) | 2 | 1 | 1 | - |
| Wound revision (infection) | 1 | 0 | 1 | - |
| Tumor growth/recurrence | 6 (4.7%) | 1 (2.2%) | 5 (6.0%) | 0.320 |
| Local recurrence | 2 | 1 | 1 | - |
| Local progression | 4 | 0 | 4 | - |
| Change in mMCs | 0 (−1–3) | 0.5 (0–2) | 0 (−1–3) | 0.629 |
| Improved | 61 (47%) | 23 (50%) | 38 (46%) | 0.646 |
| Unchanged | 66 (51%) | 23 (50%) | 43 (52%) | 0.844 |
| Worse | 2 (1.6%) | 0 (0%) | 2 (2.4%) | - |
| Mortality | ||||
| 3-month mortality | 0 (0%) | 0 (0%) | 0 (0%) | - |
| Long-term mortality | 27 (21%) | 22 (48%) | 5 (6.0%) | <0.001 |
| Tumor-related death | 1 (1%) | 1 (2%) | 0 (0%) | - |
| Years from surgery to death | 6.6 (0.3–15) | 5.9 (0.3–15) | 8.5 (3.1–12) | - |
Data presented as median (range) or count (proportion). Bold text indicates a statistically significant correlation (p < 0.05). Abbreviations: mMCs = modified McCormick scale.