preferred_name: Leg pain as measured by the visual analog scale (vas) or numeric pain scale at one year (9 to 15 months) postoperatively was less than or equal to 3.0 or leg pain measured by the visual analog scale (vas) or numeric pain scale within three months preoperatively and at one year (9 to 15 months) postoperatively demonstrated an improvement of 5.0 points or greater
preferred_name_lc: leg pain as measured by the visual analog scale (vas) or numeric pain scale at one year (9 to 15 months) postoperatively was less than or equal to 3.0 or leg pain measured by the visual analog scale (vas) or numeric pain scale within three months preoperatively and at one year (9 to 15 months) postoperatively demonstrated an improvement of 5.0 points or greater
label: Leg pain as measured by the visual analog scale (vas) or numeric pain scale at one year (9 to 15 months) postoperatively was less than or equal to 3.0 or leg pain measured by the visual analog scale (vas) or numeric pain scale within three months preoperatively and at one year (9 to 15 months) postoperatively demonstrated an improvement of 5.0 points or greater
label_lc: leg pain as measured by the visual analog scale (vas) or numeric pain scale at one year (9 to 15 months) postoperatively was less than or equal to 3.0 or leg pain measured by the visual analog scale (vas) or numeric pain scale within three months preoperatively and at one year (9 to 15 months) postoperatively demonstrated an improvement of 5.0 points or greater