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Table 2 Comparison of the stiffness and load with 2 mm displacement in the experiment and FE calculations

From: Role of an additional third screw in the fixation of transverse patellar fracture with two parallel cannulated screw and anterior wire

With anterior wire
  Bryant Model A
(5-mm screw placement with the wire)
Model C
(10-mm screw placement with the wire)
Flexion 45°
Displacement (mm) under 400 N
1.2 ± 0.34 1.63 1.75
Without anterior wire
  Dargel Model B
(5-mm screw placement without the wire)
Model D
(10-mm screw placement without the wire)
Full extension
 Linear stiffness (N/mm) 240.67 ± 28.44 253.44 243.31
 Load with 2 mm displacement (N) 549.64 ± 56.18 703.1 504
Flexion 45°
 Linear stiffness (N/mm) 147 ± 50.96 266.88 170.81
 Load with 2 mm displacement (N) 351.35 ± 119.88 758.9 340