Table 4.
Radiographic outcomes of the PFC and MRK groups at 2 years
| Outcome | PFC group | MRK group | P value |
|---|---|---|---|
| Femoral valgus angle (°) | 95.5 ± 3.5 (84–101) | 95.6 ± 3.9 (80–100) | 0.90 |
| Tibial valgus angle (°) | 89.2 ± 2.5 (83–93) | 88.4 ± 1.9 (84–92) | 0.11 |
| Total valgus angle (°) | 184.7 ± 3.5 (175–192) | 184.0 ± 4.3 (169–191) | 0.43 |
| Lateral femoral angle (°) | 3.3 ± 4.7 (−5–15) | 2.4 ± 2.7 (−5–6) | 0.30 |
| Lateral tibial angle (°) | 87.4 ± 2.8 (80–93) | 88.7 ± 4.3 (78–99) | 0.11 |
| PCOR | |||
| Preoperative | 0.95 ± 0.16 (0.67–1.39) | 0.90 ± 0.15 (0.64–1.21) | 0.15 |
| Postoperative | 0.99 ± 0.14 (0.72–1.28) | 0.96 ± 0.14 (0.60–1.31) | 0.34 |
| Difference | 0.04 ± 0.14 (−0.33–0.30) | 0.06 ± 0.12 (−0.14–0.30) | 0.49 |
Values are expressed as mean ± SD, with range in parentheses; PFC = Press Fit Condylar® Sigma™ posterior-stabilized total knee prosthesis; MRK = Medial Rotation Knee™ total knee prosthesis; PCOR = posterior condylar offset ratio.