Summary of symptoms and diagnostic findings.
| Symptoms & findings | Case 1 | Case 2 | Case 3 |
|---|---|---|---|
| Late onset back- or abdominal pain | Yes | Yes | No |
| Fever | No | No | No |
| Local signs of infection | Painful swelling | Painful swelling | Fistula |
| ESR, CRP & WBC on presentation | ESR 43 CRP 49 WBC 12,3 | ESR 32 CRP 24 WBC 8,9 | ESR 24 CRP 30 WBC 10 |
| Suspect radiographs | No | Screw loosening | No |
| Bonescintigraphy indicating infection | No | Yes | No |
| CT- or MRI-scan showing abscess or fistula | Yes | Yes | Yes |
| Time from onset of symptoms to diagnosis | 29 months | 2 days | 4 months |
| Time between implant placement and removal | 78 months | 59 months | 106 months |
| Macroscopic findings on revision surgery | Fibrotic and granulation tissue | Pus, granulation tissue, abscess | Fibrotic and granulation tissue, puspocket |
| Identified pathogen | P. Acnes | No pathogen identified | S. Aureus |