Table 3 Mean stiffness (K) and load values (F) for all Fx plate configuration groups, along extension, flexion, valgus and varus, with their respective standard deviations (S.D.). K and F5 denote stiffness and peak load values obtained during elastic tests while F15a and F15b are loads at 15Â mm before and after eight-minute intermission and F30 is the load at 30Â mm during plastic tests
From: Biomechanical comparison of screw-based zoning of PHILOS and Fx proximal humerus plates
| Â | F0 (SD) | F1 (SD) | F2 (SD) | F3 (SD) |
|---|---|---|---|---|
Extension | ||||
 K (N/mm) | 8.770 (0.156) | 7.734 (0.445) | 8.122 (0.220) | 10.915 (0.362) |
 F5 (N) | 43.979 (0.596) | 38.394 (2.151) | 40.357 (0.927) | 54.071 (1.651) |
Flexion | ||||
 K (N/mm) | 9.541 (0.221) | 8.248 (0.454) | 8.990 (0.424) | 11.127 (0.385) |
 F5 (N) | 47.711 (0.775) | 40.160 (2.033) | 44.479 (1.321) | 55.095 (1.922) |
Valgus | ||||
 K (N/mm) | 6.900 (0.200) | 6.332 (0.339) | 6.623 (0.170) | 8.245 (0.324) |
 F5 (N) | 35.131 (0.617) | 31.096 (0.855) | 33.260 (0.919) | 40.946 (1.600) |
Varus | ||||
 K (N/mm) | 7.590 (0.196) | 5.619 (0.180) | 7.094 (0.280) | 8.663 (0.391) |
 F5 (N) | 37.792 (0.990) | 28.151 (0.946) | 35.001 (1.277) | 43.059 (1.833) |
 F15a (N) | 84.470 (1.547) | 81.472 (2.665) | 73.545 (1.303) | 90.735 (2.439) |
 F15b (N) | 79.304 (2.507) | 78.650 (2.327) | 70.296 (1.547) | 87.577 (2.294) |
 F30 (N) | 134.391 (3.574) | 128.636 (2.339) | 123.032 (6.161) | 141.294 (3.487) |