Factors predicting success and failure for cervical facet radiofrequency denervation: a multi-center analysis
Steven P Cohen1, Zahid H Bajwa, Jan J Kraemer
1Pain Management Division, Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA. scohen40@jhmi.edu
Background And Objectives:
The concept of radiofrequency denervation has recently come under question in light of several studies showing minimal to no benefit. One possibility proposed for these negative outcomes is poor selection criteria. Unlike virtually all other spine interventions, the factors associated with success and failure for cervical facet denervation have yet to be determined. The purpose of this study is to determine which demographic, clinical and treatment factors are associated with cervical facet radiofrequency denervation outcomes.
Methods:
Data were garnered from 3 academic medical centers on 92 patients with chronic neck pain who underwent radiofrequency denervation after a positive response to diagnostic local anesthetic blocks. Success was defined as at least 50% pain relief lasting at least 6 months. Variables evaluated for their association with outcome included age, sex, duration of pain, opioid use, pain referral pattern, paraspinal tenderness, pain exacerbated by extension/rotation, magnetic resonance image abnormalities, diabetes, smoking, scoliosis, obesity, prior surgery, and levels treated.
Results:
The only clinical variable associated with success was paraspinal tenderness. Factors associated with treatment failure included radiation to the head, opioid use, and pain exacerbated by neck extension and/or rotation.
Conclusions:
Selecting patients based on key clinical variables may increase the chance of treatment success for cervical facet radiofrequency denervation.
Insights
Identifying specific patient factors can improve outcomes for cervical facet radiofrequency denervation. Paraspinal tenderness is linked to success, while head radiation and opioid use indicate potential failure.
Area of Science:
- Pain Medicine
- Interventional Pain Management
- Spinal Procedures
Background:
- Radiofrequency denervation for cervical facet joints is under scrutiny due to inconsistent outcomes.
- Poor patient selection criteria may explain the limited efficacy of this procedure.
- Factors influencing success in cervical facet denervation remain largely undetermined.
Purpose of the Study:
- To identify demographic, clinical, and treatment factors associated with successful cervical facet radiofrequency denervation.
- To establish predictors of treatment success and failure for this spinal intervention.
Main Methods:
- A retrospective study analyzed data from 92 patients with chronic neck pain undergoing radiofrequency denervation.
- Success was defined as ≥50% pain relief for ≥6 months post-procedure.
- Evaluated variables included patient demographics, pain characteristics, and treatment details.
Main Results:
- Paraspinal tenderness was the sole clinical factor associated with successful radiofrequency denervation.
- Treatment failure was linked to pain radiating to the head, opioid use, and pain worsening with neck extension/rotation.
Conclusions:
- Patient selection based on specific clinical indicators like paraspinal tenderness may enhance the success rates of cervical facet radiofrequency denervation.
- Identifying negative prognostic factors can help refine treatment strategies and improve patient outcomes.
