The Cervical Trident Study

Study Overview
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Brief Summary
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This observational retrospective study evaluates the efficacy of RF with the three-tined expandable electrode needle compared to before treatment in the treatment of chronic cervical facet joint pain.

Official Title
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Cervicale Facet Joint Denervation With a Trident Electrode, a Retrospective Observational Study

Conditions
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Facet Joint Pain

Intervention / Treatment
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* Procedure: Radiofrequency denervation of the cervical facet joint


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age > 18 years old Patients with neck pain Patient who had two diagnostic medial branch blocks with significant (>50%) improvement on both injections. Exclusion Criteria: - No patient related outcome measures available in hospital's patient charts

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Procedure: Radiofrequency denervation of the cervical facet joint|Radiofrequency denervation of the medial branch of the dorsal ramus of the cervical facet joint with a three-tined expandable needle.|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pain measurement by numeric rating score | The primary outcome of this study is pain measured with the numeric rating score (NRS): 11-point NRS ranging from 0 (no pain at all) to 10 (the worst imaginable pain). A score of zero (0) will indicate that the patient is pain free, while a score of ten (10) will indicate that they are experiencing the worst pain imaginable. | 2 months after injection in comparison to baseline | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Patient Global Impression of Change (PGIC) | The PGIC rating is increasingly being used for determining clinically important change in measures such as ratings of pain. This scale is designed to quantify patient's improvement or deterioration over time, usually either to determine the effect of an intervention or to chart the clinical course of a condition. The scales ask that a person assess his or her current pain, recall that status at a previous time-point, and then calculate the difference between the two. very much improved much improved minimally improved no change minimally worse much worse very much worse | 2 months after injection | 
| Use of analgesics | The quantity of analgesics that the patient assumes for the pain: All stopped Decreased Equal Increased | 2 months after injection | 
| Sleep | Question: 'your sleep quality is: Improved Equal Worsened' | 2 months after injection | 
| Walking ability | Question: 'after the treatment, you can walk: More than before Same as before Less than before' | 2 months after injection | 
| Patient satisfaction | Question: are you satisfied with the result: YES/NO | 2 months after injection |