25-Year back surgery study: when is less really more?

This study looked back at 25 years of medical records from 246 patients aged 50+ with lumbar spinal stenosis (a narrowing in the spine that can cause leg pain and trouble walking). Researchers compared patients who had a less invasive surgery (tubular decompression, with or without a nerve-blocking procedure) to those who had a more extensive spinal fusion (TLIF). The goal was to see which patients did well with the simpler surgery and which ones later needed fusion. No new treatments were given; the study simply analyzed past data to help guide future surgical decisions.