Table 2 Preoperative characteristics of each group
Group 1 (n = 17) | Group 2 (n = 13) | Group 3 (n = 30) | p-value | |
|---|---|---|---|---|
Age (years) | 67.9 ± 4.5 | 66.4 ± 6.9 | 72.1 ± 7.6 | 0.07 |
Sex (M/F) | 7/10 | 3/10 | 12/18 | 0.52 |
Cause of revision | 0.6 | |||
PJI | 14(82.4%) | 9(69.2%) | 24(80%) | |
Aseptic loosening | 2(11.8%) | 3(23.1%) | 5(16.7%) | |
Instability | 0 | 1(7.7%) | 1(3.3%) | |
PE wear | 1(5.9%) | 0 | 0 | |
Bone defect | ||||
Femur | ||||
I | 0 | 2(15.4%) | 1(3.3%) | 0.14 |
IIA | 2(11.8%) | 1(7.7%) | 0 | |
IIB | 15(88.2%) | 9(69.2%) | 25(83.3%) | |
III | 0 | 1(7.7%) | 4(13.3%) | |
Tibia | ||||
I | 11(64.7%) | 7(53.8%) | 12(40%) | 0.42 |
IIA | 2(11.8%) | 4(30.8%) | 10(33.3%) | |
IIB | 4(23.5%) | 2(15.4%) | 8(26.7%) | |
III | 0 | 0 | 0 | |
Knee scores | ||||
KSKS | 46.5 ± 10.7 | 38.7 ± 8.6 | 43.2 ± 11.2 | 0.12 |
KSFS | 39.4 ± 13.4 | 33.8 ± 10.8 | 41.7 ± 13.9 | 0.21 |
WOMAC | 84.4 ± 14.4 | 88.8 ± 7.0 | 87.8 ± 8.2 | 0.87 |
Range of motion(°) | 104.7 ± 15.5 | 105 ± 28.9 | 95.3 ± 27.7 | 0.54 |
Weight (kg) | 61.1 ± 12.6 | 59.5 ± 9.3 | 59.8 ± 13.7 | 0.79 |
Height(m) | 1.55 ± 0.09 | 1.52 ± 0.05 | 1.54 ± 0.12 | 0.6 |
BMI (kg/m2) | 25.3 ± 4.6 | 25.8 ± 3.0 | 25.2 ± 4.5 | 0.85 |
Follow up period (months) | 66.1 ± 9.7 | 63.3 ± 10.3 | 60.7 ± 8.1 | 0.03 |