At @ weeks , there were no significant between-group differences in the RMDQ score ( adjusted difference in the average treatment effect between the glucocorticoid-lidocaine group and the lidocaine-alone group , -@ points ; @ % confidence interval -LSB- CI -RSB- , -@ to @ ; P = @ ) or the intensity of leg pain ( adjusted difference in the average treatment effect , -@ points ; @ % CI , -@ to @ ; P = @ ) .