The use of radiofrequency lesions for pain relief in failed back patients

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Abstract
If conservative measures fail in the treatment of the failed back patient and if there is no indication for further surgery, interruption of nerve pathways conducting noxious stimuli may be attempted. The indication for such treatment is made on the result of a series of prognostic blocks analysing the conduction pattern of noxious stimuli. A new technique is described to interrupt the grey communicating ramus, conducting afferent fibres from the anterolateral and anterior parts of the annulus fibrosus. Results indicate a discrepancy between the result of radiofrequency lesions and the outcome of prognostic blocks. The discrepancy is more pronounced in failed back patients. Treatment with radiofrequency lesions is well tolerated and it has few adverse effects. It has a measure of success in a group of patients who are very difficult to manage otherwise.