| Antibiotics | NF+NSTI | NF | NSTI |
| Preoperative (89 cases) | 50/39 |
|
|
| Penicillin/amoxicillin-clavulanic acid | 34 (38.2) | 17 (19.1) | 17 (19.1) |
| Vancomycin | 24 (27.0) | 15 (17.0) | 9 (10.1) |
| Clindamycin | 19 (21.4) | 12 (13.5) | 7 (8.0) |
| Imipenem + other “-nems” | 14 (16.0) | 5 (5.7) | 9 (10.2) |
| Metronidazole | 13 (14.6) | 8 (9.0) | 5 (5.6) |
| Amikacin/gentamycin | 12 (13.5) | 8 (9.0) | 4 (4.5) |
| Piperacillin/tazobactam | 7 (7.7) | 5 (5.5) | 2 (2.2) |
| Zyvox/zosyn | 7 (8.1) | 6 (7.0) | 1 (1.2) |
| Postoperative (98 cases) | 59/39 |
|
|
| Penicillin/amoxicillin-clavulanic acid | 31 (31.6) | 19 (19.4) | 12 (12.2) |
| Vancomycin | 26 (26.5) | 14 (14.3) | 12 (12.2) |
| Clindamycin | 22 (22.5) | 14 (14.2) | 8 (8.2) |
| Metronidazole | 19 (19.4) | 11 (11.2) | 8 (8.2) |
| Amikacin/gentamycin | 19 (19.4) | 13 (13.3) | 6 (6.1) |
| Imipenem + other “-nems” | 16 (16.5) | 8 (8.3) | 8 (8.3) |
| Zyvox/zosyn | 16 (16.5) | 8 (8.3) | 8 (8.3) |
| Piperacillin/Tazobactam | 15 (15.5) | 11 (11.3) | 4 (4.1) |