Does Aberrant Nociceptive Processing Predict Cervical Facet-Mediated Pain?

Ashley Smith

What question is this study trying to answer?

The objectives of this study were to evaluate the sensitivity and specificity of atypical nociceptive processing (reduced local, remote or global pressure pain thresholds PPTs) in patients with cervical facet-mediated pain who reported a successful response to radiofrequency coagulation (RFC) 1-month post-procedure.

What did we learn?

Measures of atypical nociceptive processing (reduced local, remote or global PPTs) failed to detect cervical facet-mediated pain that successfully responded to RFC, in up to 30% of people. In addition, significant false-positive rates were demonstrated, which would result in excessive unsuccessful diagnostic blocks being performed. Local, remote and global PPTs all demonstrated similar diagnostic accuracy in predicting 1-month successful response to RFC.

Why is this relevant?

Based on these results, we demonstrate that atypical nociceptive processing as measured with PPTs does not accurately diagnose cervical facet-mediated pain that demonstrates subsequent successful response to RFC at 1-month. As such, diagnostic blocks remain the most accurate method in determining prognosis for succesful response to RFC.

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