Table 1.
Stating the recurrence/non-recurrence refers to infection
| Demographic data | Recurrence (n = 17) | Non-recurrence(n = 132) | p-value |
|---|---|---|---|
| Sex | |||
| Male/Female | 14(82.4%)/3(17.6%) | 104(78.8%)/28(21.2%) | 0.981 |
| Age | 41.9 ± 9.2 | 39.0 ± 6.1 | 0.081 |
| Smoking | 5(29.4%) | 42(31.8%) | 0.841 |
| Diabetes | 6(35.3%) | 17(12.9%) | 0.040 |
| Initial injury | |||
| Open/ Close | 15(88.2%)/2(11.8%) | 114(86.4%)/18(13.6%) | 1.000 |
| Index surgery fixation | |||
| Internal /External fixation | 10(58.8%)/7(41.2%) | 72(54.5%)/60(45.5%) | 0.739 |
| Course of osteomyelitis | |||
| (> 3 months) | 16(94.1%) | 89(67.4%) | 0.023 |
| Previous Number of Surgeries | 3.9 ± 1.3 | 2.6 ± 1.4 | < 0.001 |
| Bone exposure | 15(88.2%) | 47(35.6%) | < 0.001 |
| Preoperative Lab result | |||
| "WBC” and “ESR/CRP” | 7.6 ± 2.1and25.1 ± 3.7/11.3 ± 2.7 | 8.1 ± 2.4and23.6 ± 3.4/10.9 ± 2.2 | 0.496and0.082/0.524 |
| Type of external fixator | |||
| Ring/Monolateral | 13(76.5%)/4(23.5%) | 89(67.4%)/43(32.6%) | 0.450 |
| Size of bone defect | 6.6 ± 1.9 | 7.0 ± 2.0 | 0.441 |
| Level of bone transport | |||
| Single/Double | 13(76.5%)/4(23.5%) | 92(69.7%)/40(30.3%) | 0.564 |
| Flap coverage | 4(23.5%) | 25(18.9%) | 0.901 |
| Intraoperative blood transfusion | 9(52.9%) | 30(22.7%) | 0.018 |
| Microbiological result | |||
| Pseudomonas aeruginosa | 9 (52.9%) | 23 (17.4%) | 0.002 |
| Staphylococcus aureus (include MRSA) | 5(29.4%) | 58(43.9%) | 0.254 |
WBC:white blood count; CRP:C-reactive protein; ESR:erythrocyte sedimentation rate; MRSA: methicillin-resistant Staphylococcus aureus