Patients in group L showed lower pain scores than those of group C at 1 h ( 50 [ 0-100 ] vs. 80 [ 20-100 ] ; p = 0.004 ) , 6 h ( 30 [ 0-90 ] vs. 70 [ 30-90 ] ; p < 0.001 ) , 24 h ( 30 [ 0-80 ] vs. 50 [ 10-80 ] ; p = 0.016 ) and 48 h ( 10 [ 0-80 ] vs. 30 [ 10-80 ] ; p < 0.001 ) postoperatively .