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Table 2 Force for 1 mm displacement

From: Comparison of transverse wires and half pins in Taylor Spatial Frame: A biomechanical study

  180 mm rings 155 mm rings
Divergence Angle Half pins (1 ring) Transverse Wires (2 rings) Half pins (1 ring) Transverse Wires (2 rings)
90° 188.1 (±3.27) 198.8 (±1.46) 209 (±0.35) 195.5 (±1.63)
75° 169.19 (±1.77) 173.46 (±2.49) 204 (±3.18) 184.3 (±3.51)
60° 149.77 (±1.39) 155.66 (±2.83) 178.8 (±2.67) 178.8 (±1.35)
45° 129.35 (±0.78) 124.37 (±3.71) 164.4 (±1.93) 150.1 (±2.47)
  1. All values in N and brackets show SD. There was no statistically significant difference between the half pin and transverse wires (with accessory ring) assembly (p > 0.05). However, there was a significant increase in force required to allow 1 mm movement in the smaller (155 mm) ring size (p = 0.038).