| Patient (No.) | Pre-op (score) | Post-op (score) |
| 1 | 1 | 7 |
| 2 | 1 | 5 |
| 3 | 1 | 4 |
| 4 | 0 | 2 |
| 5 | 0 | 12* |
| 6 | 0 | 3 |
| 7 | 0 | 1 |
| 8 | 0 | 4 |
| 9 | 0 | 3 |
| 10 | 1 | 7 |
| 11 | 0 | 7 |