Table 1 Patient characteristics
Failure (N = 27) | Success (N = 334) | Total (N = 361) | p-value | |
|---|---|---|---|---|
Age, years | 0.098 | |||
Mean (SD) | 59.1 (12.6) | 62.9 (12.5) | 62.6 (12.5) | |
Median [Min, Max] | 59.0 [29.0, 85.0] | 65.0 [26.0, 89.0] | 65.0 [26.0, 89.0] | |
Sex, n (%) | 0.286 | |||
Female | 12 (44.4%) | 167 (50.0%) | 179 (49.6%) | |
Male | 15 (55.6%) | 167 (50.0%) | 182 (50.4%) | |
BMI, kg/m2 | 0.210 | |||
Mean (SD) | 28.7 (6.97) | 26.6 (4.96) | 26.8 (5.16) | |
Median [Min, Max] | 27.8 [19.6, 48.6] | 26.3 [15.7, 50.0] | 26.6 [15.7, 50.0] | |
Joint, n (%) | 0.016 | |||
Hip | 11 (40.7%) | 176 (52.7%) | 187 (51.8%) | |
Knee | 16 (59.3%) | 158 (47.3%) | 174 (48.2%) | |
Laterality, n (%) | 0.430 | |||
Left | 13 (48.1%) | 145 (43.4%) | 158 (43.8%) | |
Right | 14 (51.9%) | 189 (56.6%) | 203 (56.2%) | |
Surgery, n (%) | 0.603 | |||
Primary | 21 (77.8%) | 264 (79.0%) | 285 (78.9%) | |
Revision | 6 (22.2%) | 70 (21.0%) | 76 (21.1%) | |
ASA, n (%) | ||||
1 | 1 (3.7%) | 12 (3.6%) | 13 (3.6%) | |
2 | 10 (37.0%) | 159 (47.6%) | 169 (46.8%) | 0.492 |
3 | 16 (59.3%) | 163 (48.8%) | 179 (49.6%) | 0.311 |
Polymicrobial, n (%) | 3 (11.1%) | 27 (8.1%) | 30 (8.3%) | 0.257 |
Resistant organism, n (%) | 1 (3.7%) | 44 (13.2%) | 45 (12.5%) | 0.129 |
CRP, mg/L | 0.699 | |||
Mean (SD) | 9.21 (9.18) | 6.74 (9.91) | 6.92 (9.86) | |
Median [Min, Max] | 5.60 [0.280, 32.3] | 3.49 [0, 69.0] | 3.66 [0, 69.0] | |
ESR, mm/h | 0.003 | |||
Mean (SD) | 36.0 (26.0) | 24.6 (18.6) | 25.5 (19.4) | |
Median [Min, Max] | 28.0 [2.00, 85.0] | 21.5 [0, 99.0] | 23.0 [0, 99.0] | |
Interim spacer exchange, n (%) | 0.005 | |||
Yes | 19 (70.4%) | 281 (84.1%) | 300 (83.1%) | |
No | 8 (29.6%) | 53 (15.9%) | 61 (16.9%) | |
Time To Reimplant, days | 0.003 | |||
Mean (SD) | 220 (271) | 143 (118) | 149 (137) | |
Median [Min, Max] | 117 [49.0, 1380] | 117 [33.0, 1030] | 117 [33.0, 1380] |