PM & R : the journal of injury, function, and rehabilitation
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To review the duration of pain relief after initial and repeated radiofrequency neurotomy (RFN) for cervical and lumbar zygapophysial joint pain. ⋯ The results of this review indicate that pain relief after initial RFN generally ends after 7-9 months and that repeating RFN is likely to provide additional pain relief if initial RFN was successful. Results are similar between cervical and lumbar spine studies.