Hermansen E, et al. - Data from the Norwegian Registry for Spine Surgery (NORspine) was assessed for the comparative study of the clinical outcomes after decompressive surgery in lumbar spinal stenosis between cases with insignificant lower extremity pain and those with more severe pain. Four groups were meant as per pain intensity: group 1 (insignificant pain), group 2 (mild or moderate pain), group 3 (severe pain) and group 4 (extremely severe pain). Researchers observed 154 cases in group 1; 753 in group 2; 1766 in group 3; and 528 in group 4. They noted less improvement in primary and secondary outcome parameters from baseline to follow-up among subjects with lower extremity pain as compared to those with more severe lower extremity pain.