Table 2
Postoperative radiographic alignment parameters of patients who underwent TKA using patient-specific or conventional instrumentation.
| PSI (n = 41) | CI (n = 54) | p-value | |
|---|---|---|---|
| Alignment parameters (mean ± SD) | |||
| TFA | 183.29 ± 1.93 | 183.22 ± 2.02 | 0.864** |
| Alpha angle | 95.27 ± 1.87 | 95.24 ± 1.91 | 0.944** |
| Beta angle | 88.07 ± 1.81 | 88.04 ± 1.94 | 0.926** |
| FCF | 0.46 ± 2.67 | 0.87 ± 1.29 | 0.330** |
Abbreviations: PSI: patient-specific instrumentarium; CI: conventional instrumentarium; TFA: tibio-femoral angle; FCF: femoral component flexion; SD: standard deviation. Alpha angle represents the anatomic medial distal femoral angle; Beta angle represents the anatomic proximal medial tibial angle. **Comparisons by student’s t-test.
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