Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
difficulties in recruiting patients with knee osteoarthritis to the pain clinic.
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
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.
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| pulsed radiofrequency ablation to modified points group | Experimental | pulsed radiofrequency ablation aimed at the adjusted target point of Park et al. under C-arm guidance |
|
| pulsed radiofrequency ablation to conventional points group | Active Comparator | pulsed radiofrequency ablation aimed at conventional target point under C-arm guidance |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| pulsed radiofrequency ablation to modifined points group | Procedure | 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. |
| Measure | Description | Time Frame |
|---|---|---|
| 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. | during the ablation procedure |
| Measure | Description | Time Frame |
|---|---|---|
| numeric rating score | A score of 0 indicates no pain and a score of 10 indicates maximum pain. | 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 |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| ID | Term |
|---|---|
| D020370 | Osteoarthritis, Knee |
| ID | Term |
|---|---|
| D010003 | Osteoarthritis |
| D001168 | Arthritis |
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
Not provided
Not provided
Not provided
Not provided
Not provided
Medical staff performing patient care, including pain management, and investigators who investigate and record observations and evaluations, and participants are kept unaware of group assignments.
|
| pulsed radiofrequency ablation to conventional points group | Procedure | 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 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
| 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. | 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. | Before the pulsed radiofrequency ablation, after 4 weeks of the ablaion, after 8 weeks of the ablation, after 12 weeks of the ablation |
| D012216 |
| Rheumatic Diseases |