Extraction form for project: Interventional Treatments for Acute and Chronic Pain: Systematic Review

Design Details

1. Trial Intervention
Input which intervention is being studied
2. Trial Name
3. Setting
Country
4. Study Design
5. Mean Age (Years)
Input the mean age for the entire sample
6. Percent Female
Input the whole number here for the entire study sample - no need to add %
7. Number Randomized
8. Pain Duration Measure (Mean, Median)
9. Pain Duration (Weeks)
10. Duration of Followup (Months)

Arms

Arm NameArm Description
Pulsed radiofrequency denervationRadiofrequency cannula was either 21-gauge, 100-mm (Model PMC21-100-5; Baylis Medical Co., Montreal, QC, Canada) or 20-gauge, 145-mm length (Model PMC20-145-5, Baylis Medical Co) with 5 mm active tip. Under fluoroscopy, positioned cannula for the L1 to L4 medial branches at the superior, medial edges of the posterior surfaces of the transverse processes at the junction with the articular pillars and for the L5 medial branch at the junction of the medial end of the ala of the sacrum with the articular pillar. Baylis Pain Management Generator (Model PMG-115) with 100-mm (Model PMP21-100) or 145-mm (Model PMP-20- 145) radiofrequency probe used. Placed radiofrequency probes through the cannulae and confirmed placement by provocative sensory testing at a frequency of 50 Hz at <1 volt and absence of motor stimulation in the lower extremity at a frequency of 2 Hz and up to 2.5 volts. Pulsed radiofrequency lesioning was delivered at 42° C with a pulse duration of 20 ms and pulse rate of two Hz for 120 seconds.
Continuous radiofrequency denervationAs above, with radiofrequency lesioning was at 80°C for 75 seconds.

Arm Details

N/A

Sample Characteristics

N/A

Outcomes

TypeDomainSpecific measurement (i.e., tool/definition/specific outcome)PopulationsTimepoints
ContinuousPainPain intensity (mean [SD], 0 to 100 VAS transformed to 0 to 10 scale)
  • All Participants
  • 3 (months)
ContinuousFunctionODI (mean [SD], 0 to 100 scale)
  • All Participants
  • 3 (months)

Outcome Details

N/A

Risk of Bias Assessment

1. What kind of study is this?
2. Randomization adequate?
3. Allocation concealment adequate?
4. Groups similar at baseline?
5. Outcome assessors masked?
6. Care provider masked?
7. Patient masked?
8. Acceptable levels of overall attrition and between-group differences in attrition?
9. Intention-to-Treat (ITT) analysis?
10. Avoidance of selective outcomes reporting
11. Quality rating

Results

Continuous


Pain (Pain intensity (mean [SD], 0 to 100 VAS transformed to 0 to 10 scale))

All Participants
Descriptive StatisticsBetween Arm Comparisons
Pulsed radiofrequency denervationContinuous radiofrequency denervation
3 (months)
Mean
Mean Difference (MD)
SD
95% CI low (MD)
95% CI high (MD)
SD (MD)
p value (MD)
Within Arm ComparisonsNet Comparisons
Pulsed radiofrequency denervationContinuous radiofrequency denervation

Function (ODI (mean [SD], 0 to 100 scale))

All Participants
Descriptive StatisticsBetween Arm Comparisons
Pulsed radiofrequency denervationContinuous radiofrequency denervation
3 (months)
Mean
Mean Difference (MD)
SD
95% CI low (MD)
95% CI high (MD)
SD (MD)
p value (MD)
Within Arm ComparisonsNet Comparisons
Pulsed radiofrequency denervationContinuous radiofrequency denervation