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Table 3 Multiple tests of the maximum diameter of the infra-acetabular corridor under different perspective angles

From: Application of a three-dimensional virtual model to study the effect of fluoroscopic angle on infra-acetabular corridor parameters and screw insertion rates

  IAD IAD15° IAD25° IAD35° IAD45°
Male
 IAD  ×      
 IAD 15°  − 0.17819  ×     
 IAD 25°  − 0.19894  − 0.02074  ×    
 IAD 35°  − 0.23191  − 0.05372  − 0.03298  ×   
 IAD 45° 0.39447* 0.57266* 0.59340* 0.62638*  × 
Female
 IAD  ×      
 IAD 15°  − 0.19892  ×     
 IAD 25°  − 0.18710 0.01183  ×    
 IAD 35° 0.03226 0.23118 0.21935  ×   
 IAD 45° 1.32258* 1.52151* 1.50968* 1.29032*  × 
  1. IAD, diameter of IAC
  2. *P < 0.05