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Table 1 Duration of surgery and radiation dose

From: Rate of intraoperative problems during sacroiliac screw removal: expect the unexpected

  N SI Screw Fixation Removal p
Duration of surgery [min] 19    
 total   29.0 (11.4) 37.6 (14.8) .075
 per screw   15.2 (5.3) 21.3 (6.3) .005
Radiation dose [mGy] 13    
 total   27.2 (19.3) 27.5 (21.2) .845
 per screw   11.4 (6.5) 13.0 (8.6) .845
  1. Data reported as mean and standard deviation (in brackets)
  2. min minutes, mGy Milli-Gray