Table I.
Baseline data of Methicillin-resistant group versus control group CRP: C-reactive protein, ESR: erythrocyte sedimentation rate; WBC: white blood count; THA: total hip arthroplasty; I&D: irrigation and debridement; COPD: chronic obstructuve pulmonary disease; HHS: Harris hip score.
| Variable | Methicillin-resistant (Infection group n: 28) | Control (group n: 29) | p-value |
|---|---|---|---|
| Age (years) | 68.9 (range, 49-82) | 65.9 (range, 36-84) | 0.37 |
| Gender | 0.70 | ||
| Male | 15 | 17 | |
| Female | 13 | 12 | |
| Body mass index (kg/m2) | 23.4 (range,19-34) | 23.6 (range, 16-34) | 0.81 |
| CRP (mg/l) | 5.2 (range,0.37-18.1) | 5.9 (range, 0.5-24) | 0.63 |
| ESR (mm/hr) | 68.3 (range 9-116) | 70.5 (range, 11-118) | 0.78 |
| WBC (x103/ml) | 11.6 (range,7.1-19.5) | 13.0 (range,4.2-23.2) | 0.24 |
| Follow-up period (months) | 33.7 (range, 12-67) | 28.4 (range, 12-73) | 0.27 |
| Type of infected hip arthroplasty | 0.01 | ||
| Primary THA | 3 | 18 | |
| Revision THA | 11 | 2 | |
| Bipolar hemiarthroplasty | 14 | 9 | |
| Pre-operative antibiotic treatment | 0.38 | ||
| Yes | 5 | 8 | |
| No | 23 | 21 | |
| History of previous I& | 0.97 | ||
| Yes | 2 | 2 | |
| No | 26 | 27 | |
| Pre-operative HHS | 50.1 (range, 21-71) | 42.1 (range, 11-72) | 0.03 |
| Comorbidities | |||
| Hypertension | 14 | 9 | |
| Diabetes mellitus | 5 | 4 | |
| Cerebrovascular disease | 1 | 1 | |
| Cardiovascular disease | 2 | 3 | |
| Renal insufficiency | 5 | 3 | |
| COPD | 3 | 1 | |
| Liver disease | 2 | 2 | |
| Malignancy | 1 | 2 |