Table 1.
Comparison between the stiffness of the osteosyntheses with the 2C classical configuration (2C) and the 2C configuration with end caps (2CEC). Lower changes in shifting tests = higher stiffness
| 2C classical (2C) | 2C with end caps (2CEC) | P value | |
|---|---|---|---|
| (n = 8) | (n = 7) | ||
| Mean (SD) four-point bending (Nm/mm) | |||
| Anterior-posterior | 0.52 (0.49) | 0.44 (0.11) | 0.04a |
| Posterior-anterior | 0.43 (0.11) | 0.48 (0.13) | 0.89 |
| Lateral-medial | 0.70 (0.16) | 0.60 (0.19) | 0.04a |
| Medial-lateral | 0.76 (0.27) | 0.73 (0.25) | 0.57 |
| Mean (SD) rotation (Nm/°) | |||
| External rotation | 0.12 (0.04) | 0.10 (0.03) | 0.15 |
| Internal rotation | 0.11 (0.03) | 0.10 (0.03) | 0.09 |
| Mean (SD) 9° compression/shifting (mm) | |||
| Shifting 9° trochanter major | 0.80 (0.65) | 1.77 (1.70) | 0.06 |
| Shifting 9° crista intertrochanterica | 4.56 (2.67) | 7.44 (2.48) | 0.01a |
aAdjusting the results with the Holm-Bonferroni method, the significance of the differences could not be confirmed