Patients in group L showed lower pain scores than those of group C at @ h ( @ -LSB- @-@ -RSB- vs. @ -LSB- @-@ -RSB- ; p = @ ) , @ h ( @ -LSB- @-@ -RSB- vs. @ -LSB- @-@ -RSB- ; p < @ ) , @ h ( @ -LSB- @-@ -RSB- vs. @ -LSB- @-@ -RSB- ; p = @ ) and @ h ( @ -LSB- @-@ -RSB- vs. @ -LSB- @-@ -RSB- ; p < @ ) postoperatively .