Risk factors for periprosthetic joint infections in total knee arthroplasty patients with deep infections, n = 15
| Risk factor | No. patients |
|---|---|
| Patient comorbidities | |
| History of joint surgery | 4 |
| Diabetes | 3 |
| Immunosuppression | 3 |
| ASA score > 2 | 2 |
| Obesity (BMI > 35) | 1 |
| Rheumatoid arthritis | 1 |
| Postoperative complications | |
| Hospital stay > 5 days | 7 |
| Wound drainage > 5 days | 4 |
| Allogenic transfusion | 2 |
| Hematoma | 2 |
| Other factors | |
| Surgical drain > 24 hours | 3 |
| Urinary catheterization > 48 hours | 2 |
ASA = American Society of Anesthesiologists; BMI = body mass index.