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 lumbar facet joint pain.
Study Type
OBSERVATIONAL
Enrollment
44
Radiofrequency denervation of the medial branch of the dorsal ramus of the lumbar facet joint with a three-tined expandable needle.
Pain Management Center, Neurocenter of Southern Switzerland
Lugano, Switzerland
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.
Time frame: 2 months after injection in comparison to baseline
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.
Time frame: 2 months after injection
Use of analgesics
The quantity of analgesics that the patient assumes for the pain: * All stopped * Decreased * Equal * Increased
Time frame: 2 months after injection
Sleep
Question: "your sleep quality is: * Improved * Equal * Worsened"
Time frame: 2 months after injection
Walking ability
Question: "after the treatment, you can walk: * More than before * Same as before * Less than before"
Time frame: 2 months after injection
Patient satisfaction
Question: "are you satisfied with the result: YES/NO"
Time frame: 2 months after injection
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