Table 1 The relationship between posterior screw instrumentation and each surgical cause of revision spinal surgery
From: Unplanned revision spinal surgery within a week: a retrospective analysis of surgical causes
Instrumentation (n = 4984) | No instrumentation (n = 5366) | χ2 | p | |
|---|---|---|---|---|
All causes of revision surgery | 68 | 48 | 5.1472 | 0.023 |
All causes of revision surgery excluding screw malposition | 27 | 48 | 4.4705 | 0.034 |
Screw malposition | 41 | 0 | n/a | |
Epidural hematoma | 10 | 17 | 1.3402 | 0.247 |
Inadequate decompression | 12 | 25 | 3.6765 | 0.055 |