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Table 2 Stiffness (N/mm) of the four fixation types for metacarpal shaft fracture

From: Effect of oblique headless compression screw fixation for metacarpal shaft fracture: a biomechanical in vitro study

Group Sample size Median IQR MAX MIN Pa
LP 7 29.6 3.0 31.7 26.9 < 0.001
RP 7 22.6 2.8 36.2 16.9
K 7 14.7 5.6 21.6 8.9
HC 7 23.1 5.2 34.9 19.2
  1. LP locked plate with five locked bicortical screws, RP regular plate with five bicortical screws, K two K wires, HC headless compression screw
  2. aKruskal–Wallis test