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Table 4 Comparison of the normal group and the screw misplacement group in each side

From: Accuracy of pedicle screw insertion for unilateral open transforaminal lumbar interbody fusion: a side-by-side comparison of percutaneous and conventional open techniques in the same patients

SideCategorical variableNormal groupMisplacement groupP-value
P-sideage69.169.1NS
BMI*23.726.3P = 0.001
Gendermale7813 
female7119NS
Inserted sideRight6614 
Left8318NS
Fixed level113327 
2165NS
O-sideage68.572.2NS
BMI24.124.1NS
Gendermale7417 
female7416NS
Inserted sideRight8714 
Left6119NS
Fixed level113030 
2183NS
  1. BMI Body Mass Index, NS nonsignificant, P-side PPS side, O-side Open side
  2. *P < 0.05