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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).