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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 15 mm before and after eight-minute intermission and F30 is the load at 30 mm during plastic tests

From: Biomechanical comparison of screw-based zoning of PHILOS and Fx proximal humerus plates

  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)