Table 2.
Comparison of risk factors for revision spinal surgery between surgical causes
| Screw Malposition (n = 41) | Epidural Hematoma (n = 27) | Inadequate Decompression (n = 37) | Others (n = 11) | p | |
|---|---|---|---|---|---|
| Age (y) | 65.51 ± 12.02 (38–93) | 67.30 ± 17.61 (24–88) | 54.35 ± 11.35 (30–75) * | 65.91 ± 15.66 (38–83) | <0.001 |
| Interval to reoperation (d) | 6.20 ± 1.40 (2–7) | 2.70 ± 2.48 (0–7) * | 5.27 ± 1.97 (1–7) | 4.45 ± 1.81 (2–7) | <0.001 |
| Length of hospital stay (d) | 15.76 ± 7.65 (7–55) | 23.11 ± 16.92 (5–74) | 17.00 ± 13.47 (4–55) | 21.73 ± 19.45 (7–60) | 0.117 |
| Number of inpatient operations | 2.15 ± 0.48 (2–4) | 2.30 ± 0.54 (2–4) | 2.08 ± 0.60 (2–4) | 2.09 ± 0.30 (2–3) | 0.410 |
| Presence of new post-operative neurological deficit | 4.88 % (2) | 25.93 % (7)* | 2.70 % (1) | 9.09 % (1) | 0.013a |
Data are presented as mean ± standard deviation (range) by one-way ANOVA, with the exception of presence of new post-operative neurological deficit, which is presented as % (number of cases)
aFisher’s exact test
*p < 0.05