Abstract
Invasive treatment of chronic pain emanating from joints is often difficult because of the complex anatomy of the nerve supply. In most joints, the innervation is derived from several segmental levels, with multiple peripheral nerve branches entering the joint capsule. For this reason, treatment aimed at the joint innervation is often incomplete. The intra-articular injection of steroids is a popular procedure, but the duration of action of such injections is limited and there may be deleterious effects if they are repeated too often. We have attempted to treat intractable arthrogenic pain by placing an electrode into the joint space and applying pulsed radiofrequency (PRF). We offered this treatment to patients with long-standing arthrogenic pain not responding to medication or other conventional conservative and invasive measures. The experimental nature of this procedure was extensively discussed with each patient and consent was obtained.
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