Table 1 Demographic data
From: Mid-term results of titanium–titanium modular neck femoral stem in primary total hip arthroplasty
Ti–Ti modular neck femoral stem (n = 47) | Nonmodular femoral stem (n = 41) | P value | |
|---|---|---|---|
Age (years) | 56.3 ± 11.4 | 60.6 ± 12.8 | 0.080 |
Sex (M/F) | 22 (26 hips)/20 (21hips) | 19 (23 hips)/16 (18 hips) | 0.942 |
Height (cm) | 163.7 ± 8.8 | 160.1 ± 9.0 | 0.062 |
Weight (kg) | 62.7 ± 11.9 | 63.1 ± 11.3 | 0.795 |
Body mass index (kg/m2) | 23.3 ± 2.8 | 24.6 ± 3.7 | 0.065 |
American Society of Anesthesiologists classification | 1.6 ± 0.7 | 1.8 ± 0.7 | 0.084 |
Charlson comorbidity index | 0.7 ± 1.2 | 0.5 ± 0.9 | 0.475 |
Koval grade | 1.6 ± 1.3 | 1.6 ± 1.6 | 0.653 |
Causes of total hip arthroplasty | 0.744 | ||
Osteonecrosis | 31 | 27 | |
Osteoarthritis | 12 | 10 | |
Femoral neck fracture | 2 | 4 | |
Rheumatoid arthritis | 1 | 0 | |
Giant cell tumor | 1 | 0 |