This study is for people who continue to have low back pain after spinal surgery, a condition called persistent spinal pain syndrome type II. Current treatments, such as epidural injections, often provide only limited relief. Doctors are testing a procedure called pulsed radiofrequency (PRF), given through a small catheter in the epidural space, with or without the addition of corticosteroids. The goal is to see if this treatment can reduce pain and improve daily function better than standard injections. About 130 patients took part, and their pain and quality of life were followed for several months after the procedure.
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Change in pain intensity measured by Visual Analogue Scale (VAS)
Timeframe: Baseline to 6 months (with assessments at 1, 2, 4, and 6 months).