New study tests Longer-Lasting nerve block for knee arthritis pain

This study looks at two types of ultrasound-guided injections for people with knee osteoarthritis who haven't gotten relief from standard treatments like pills or physical therapy. One injection uses a chemical called phenol to block pain signals for a longer time, while the other uses a numbing medicine and steroid to reduce pain and swelling. The goal is to see which works better for pain and daily function, and how safe each is. The study includes 42 adults aged 40 and older with moderate to severe knee pain.