Patient characteristics
| Patient (No.) | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Sex | F | M | F | F | F | M |
| Age (y) | 66 | 78 | 49 | 56 | 67 | 76 |
| Re-treated level | L1 | L2 | T6 | L1 | T10 | L1 |
| Interoperative interval (days) | 167 | 18 | 8 | 22 | 9 | 21 |
| Approach | ||||||
| Initial treatment | L* | B† | L | L | L | L |
| Repeat treatment | R‡ | R | R | L | R | R |
| Amount PMMA (cc) | ||||||
| Initial treatment | 3.5 | 15 | 5 | 1.1 | 1.2 | 3 |
| Repeat treatment | 1.5 | 5 | 1.5 | 2.5 | 3.5 | 1.2 |
| Initial Treatment | ||||||
| Preoperative pain | 10 | 10 | 10 | 10 | 7 | 10 |
| Postoperative pain | 0 | 5 | 0 | 0 | 3 | 3 |
| Preoperative mobility | 0 | 2 | 0 | 3 | 0 | 1 |
| Postoperative mobility | 0 | 1 | 0 | 0 | 0 | 0 |
| Repeat treatment | ||||||
| Preoperative pain | 10 | 10 | 10 | 10 | 10 | 10 |
| Postoperative pain | 8 | 1 | 2 | 0 | 4 | 6 |
| Preoperative mobility | 1 | 2 | 1 | 0 | 0 | 3 |
| Postoperative mobility | 0 | 1 | 0 | 0 | 0 | 0 |
Note.—Pain was assessed using an 11-point scale (0–10), with 0 representing no pain and 10 representing “most pain ever experienced.” Mobility was assessed using a 5-point scale as follows: 0, walking without assistance; 1, walking with assistance; 2, wheelchair bound; 3, restricted to sitting in bed; 4, restricted to lying flat in bed. Follow-up was obtained between 1 week and 1 month postoperatively.
* Left unilateral transpediculate approach.
† Bilateral transpediculate approach.
‡ Right unilateral transpediculate approach.