Why is a radiofrequency generator used in radiofrequency ablation?

The generator is the equipment that creates radiofrequency energy and sends it through a treatment needle. The clinician positions the needle near a nerve identified as contributing to pain, often after diagnostic assessment. The device can provide stimulation checks before treatment, helping confirm that the needle is near the intended nerve and away from structures that should not be treated. During ablation, the generator controls the selected treatment settings and records the session’s readings. The aim is to reduce pain signals from a small targeted nerve area; it does not remove the spine or joint problem itself.

Before treatment, share your medicines, allergies, implanted devices, pregnancy status, and any infection or bleeding concern. You may receive local anaesthetic, and the team may ask you to report unusual sensations while the needle is positioned. Follow the clinic’s instructions about eating, drinking, transport, and medicines. Afterward, temporary soreness or altered sensation near the treated area can occur. Protect numb skin from heat and follow the activity plan provided. Pain relief may take time, and the clinician may combine the procedure with exercise or rehabilitation.

Contact the treating team promptly for worsening redness, swelling, drainage, fever, or pain that is difficult to control at the needle site. Seek urgent medical help for new or increasing weakness, loss of bladder or bowel control, severe breathing difficulty, fainting, or rapidly spreading numbness. These symptoms need assessment rather than being attributed to expected post-procedure soreness.

Which nerve is being targeted, and what finding supports that choice? What checks will be used to confirm needle position? What sensations are expected during and after treatment? When can I restart my usual activities, and how will we judge whether rehabilitation is helping?