|
All Patients (N = 6123) |
ION Patients (N = 235) |
Non-ION Patients (N = 5888) |
P Value | |
|---|---|---|---|---|
|
Age (year) (mean ± SD) |
62.0±10.9 | 55.3± 14.7 | 62.4± 10.7 | <0.01 |
| Gender (Male: Female) | 959:5164 | 131:104 | 828:5060 | <0.01 |
|
Body Height (cm) (mean ± SD) |
153.6±46.0 | 165.6± 9.3 | 153.2± 43.4 | 0.04 |
|
Body Weight (Kg) (mean ± SD) |
55.7±10.3 | 59.0± 12.2 | 55.6± 10.3 | <0.01 |
|
Body Mass Index (Kg/m2) (mean ± SD) |
24.7±11.9 | 22.9± 4.1 | 24.3± 12.2 | <0.01 |
|
Leg Length Discrepancy (mm) (mean ± SD) |
-0.3± 4.9 | -0.8± 13.9 | 0.12 | |
| Affected side (left: right) | 2980:3143 | 124:111 | 2856:3032 | 0.21 |
| Pre-operative Range of Motion (degree) | ||||
| Flexion (mean ± SD) | 77.5±25.5 | 87.5± 25.8 | 77.2± 25.4 | <0.01 |
| Extension (mean ± SD) | -5.3±10.1 | -2.1± 8.0 | -5.3± 10.1 | <0.01 |
| Abduction (mean ± SD) | 17.3±11.6 | 18.3± 11.7 | 17.3± 11.6 | 0.18 |
| Adduction (mean ± SD) | 12.6±8.4 | 14.0± 8.8 | 12.6± 8.3 | 0.01 |
|
External Rotation (mean ± SD) |
24.3±15.9 | 25.2± 16.7 | 19.8± 15.8 | <0.01 |
|
Internal Rotation (mean ± SD) |
7.1±20.8 | 5.9± 10.9 | 7.1± 15.9 | 0.09 |
| Pre-operative JOA Hip score | ||||
| Total (mean ± SD) | 47.0± 13.8 | 47.7± 15.4 | 47.0± 13.7 | 0.49 |
| Pain (mean ± SD) | 15.7± 8.5 | 14.9± 8.2 | 15.7± 8.5 | 0.16 |
| Gait (mean ± SD) | 9.2± 3.9 | 9.3± 4.5 | 9.2± 3.8 | 0.65 |
| ROM (mean ± SD) | 10.9± 4.8 | 12.2± 4.6 | 10.9± 4.8 | <0.01 |
| ADL (mean ± SD) | 24.3±15.9 | 11.4± 3.8 | 11.4± 3.1 | 0.92 |
| Surgical Factors | ||||
|
Operation time (min) (mean ± SD) |
44.4± 19.2 | 41.6± 14.9 | 44.4± 19.4 | 0.03 |
|
Operation bleeding (g) (mean ± SD) |
240.3± 153.0 | 215.6± 147.4 | 241.2± 153.3 | 0.01 |
|
Post-Operation bleeding (g) (mean ± SD) |
467.8± 275.2 | 511.6± 295.6 | 466.1± 274.2 | 0.02 |
|
Total bleeding (g) (mean ± SD) |
682.4± 329.4 | 694.5± 352.1 | 682.1± 328.6 | 0.59 |