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Table 2 Measurements of different displacement fracture models by fluoroscopic imaging and direct visualization

From: Accuracy of fluoroscopic examination in the treatment of Bennett’s fracture

Displacement Measurement method Sample size Mean (mm) SD (mm) P value
0 mm Fluoroscopic imaging 20 0.5 0.5  
Direct visualization 20 0.0 0.0  
     0.00*
1 mm Fluoroscopic imaging 20 0.9 0.6  
Direct visualization 20 1.0 0.0  
     0.60
2 mm Fluoroscopic imaging 20 1.2 0.8  
Direct visualization 20 2.0 0.0  
     0.00*
3 mm Fluoroscopic imaging 20 1.6 1.0  
Direct visualization 20 3.0 0.0  
     0.00*
  1. *P < 0.05