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    The content on this page is not current guidance and is only for the purposes of the consultation process.

    What the procedure involves

    This procedure is often performed in 2 stages. Both stages are performed under fluoroscopic or ultrasound guidance. First, to assess suitability for RF denervation, patients are given a diagnostic block by injection of a local anaesthetic to the target nerves. If the diagnostic block provides pain relief, the patient is a candidate for RF denervation.

    A probe is introduced to the treatment site. Several targets have been described, including the genicular nerves, the saphenous nerve, and the articular cavity. RF energy is used to denervate the target nerves. The RF energy can be delivered as conventional RF, cooled RF, or pulsed RF. The aim is to reduce pain and delay the need for knee arthroplasty.