The goal of this study was to perform pulsed radiofrequency ablation with a modified target suggested in the cadaver study by Park et al. (The Knee 27 (2020) 1577-1584) on knee osteoarthritis patients, and to evaluate the effect of reducing the frequency of intravascular injection and reducing pain.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Point 1 place 10mm higher than the boundary between Femur's medial epicondyle and shaft. The 2nd point is targeted 20mm above the patella. Point 3 is targeted 10mm above the femur lateral epicondyle and shaft boundary. At point 4, find the boundary position between the tibia epicondyle and the shaft in the AP view and move it superolateral by 10 mm to target the central part of the medial shaft of the tibia and perform the main touch. Point 5 targets the center of the fibular head.
Under AP view X-ray fluoroscopy, enter the cannula into the tunnel view until reaching the bone, reaching the border of the shaft and epicondyle, then stop the cannula tip at the anterior 2/3 junction in the lateral view. A total of three target points are the boundary position between the femur medial epicondyle and the shaft, the boundary position between the femur lateral epicondyle and the shaft, and the boundary position between the tibia meidal epiconcyle and the shaft. Subsequent procedure will be proceed same as Arm 1
The rate at which vascular uptake is confirmed when the first contrast agent is given after the needle is positioned at the target point
Whether vascular uptake is confirmed on the x-ray image is a binary response.
Time frame: during the ablation procedure
numeric rating score
A score of 0 indicates no pain and a score of 10 indicates maximum pain.
Time frame: Before the pulsed radiofrequency ablation, after 4 weeks of the ablaion, after 8 weeks of the ablation, after 12 weeks of the ablation
functional status
The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) is a widely used, proprietary set of standardized questionnaires used by health professionals to evaluate the condition of patients with osteoarthritis of the knee and hip, including pain, stiffness, and physical functioning of the joints
Time frame: Before the pulsed radiofrequency ablation, after 4 weeks of the ablaion, after 8 weeks of the ablation, after 12 weeks of the ablation
quality of life
Q-5D is a standardised measure of health-related quality of life developed by the EuroQol Group to provide a simple, generic questionnaire for use in clinical and economic appraisal and population health surveys.
Time frame: Before the pulsed radiofrequency ablation, after 4 weeks of the ablaion, after 8 weeks of the ablation, after 12 weeks of the ablation
medication
The Medication Quantification Scale (MQS) is an instrument with potential clinical and research applications for quantifying medication regimen use in chronic pain populations.
Time frame: Before the pulsed radiofrequency ablation, after 4 weeks of the ablaion, after 8 weeks of the ablation, after 12 weeks of the ablation
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