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The aim of this study is to investigate the additional effect of Intra-articular Pulsed Radiofrequency (IAPRF) on pain and functional activities in addition to intra-articular steroids in patients with grade II and III knee osteoarthritis.
This randomized controlled trial included patients over 18 years of age with knee pain persisting for more than 3 months and stage II-III knee OA according to the Kellgren-Lawrence scale. The participants were randomized into two groups: the IAPRF + steroid injection (Group 1) and only steroid injection (Group 2) groups. The injections were administered under fluoroscopic guidance in both groups, and the needle was advanced to the midline of the tibiofemoral joint in the anteroposterior and lateral views. Group 1 received 8 mg of intra-articular dexamethasone after IAPRF application for 360 s at 45 V voltage, with the temperature not exceeding 42°C. Group 2 received 8 mg of intra-articular dexamethasone only. Pain intensity and participation in daily activities were evaluated using the numerical rating scale (NRS) and Western Ontario and McMaster Universities arthritis index (WOMAC), respectively, before the procedure and 1, 4, and 12 weeks after the procedure.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Group 1 | Experimental | Intra-articular Pulsed Radiofrequency and Steroid Injection |
|
| Group 2 | Experimental | Only Intra-articular Steroid Injection |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Intra-articular Pulsed Radiofrequency | Procedure | A 22-gauge 10 cm radiofrequency cannula with a 10-mm active tip was advanced to the mid-tibiofemoral joint under fluoroscopic guidance. After needle insertion, paresthesia-pain and motor stimulation tests were performed using sensory (50 Hz) and motor (2 Hz, 1 V) stimulation to confirm the absence of stimulation. Intra-articular Pulsed Radiofrequency (IAPRF) was applied at 45 V voltage for 20 ms pulse width for 360 s, followed by a 480 ms silent phase. The tissue temperature was adjusted to not exceed 42°C. |
| Measure | Description | Time Frame |
|---|---|---|
| Numeric Rating Scale | Pain levels before and 1, 4, 12 weeks after the procedure were evaluated with Numeric Rating Scale (NRS). The patients were instructed to score their pain intensity on a scale of 0 to 10, where "0" represents "no pain at all" and "10" represents "worst pain ever possible." | 0, 1, 4 and 12 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Western Ontario and McMaster Universities Arthritis Index | The Western Ontario and McMaster Universities Arthritis Index (WOMAC) was used to assess daily living activities at all evaluation points.The WOMAC consists of 24 items on three subscales: pain, stiffness, and physical function. All items were scored on a scale of 0 to 4, where "0" represents none, "1" represents mild, "2" represents moderate, "3" represents severe, and "4" represents extreme. The total score ranges from 0 to 96, with a higher score indicating poorer function in daily living activities. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Burak Erken, MD | Başakşehir Çam & Sakura City Hospital | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Başakşehir Cam and Sakura Şehir Hospital | Istanbul | 34488 | Turkey (Türkiye) |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 34518775 | Result | Filippiadis D, Tsochatzis A, Petsatodis E, Galanis S, Velonakis G, Giankoulof C, Kelekis A. Intra-Articular Application of Sluijter-Teixera Poisson Pulsed Radiofrequency in Symptomatic Patients with Knee Osteoarthritis: Focus upon Clinical Efficacy and Safety. Pain Res Manag. 2021 Feb 20;2021:5554631. doi: 10.1155/2021/5554631. eCollection 2021. | |
| 23942592 |
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| ID | Term |
|---|---|
| D020370 | Osteoarthritis, Knee |
| D010003 | Osteoarthritis |
| D059350 | Chronic Pain |
| ID | Term |
|---|---|
| D001168 | Arthritis |
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
| D012216 | Rheumatic Diseases |
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| ID | Term |
|---|---|
| D013256 | Steroids |
| ID | Term |
|---|---|
| D000072473 | Fused-Ring Compounds |
| D011083 | Polycyclic Compounds |
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Single-center, single-blinded, randomized prospective trial
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Procedures and evaluations were performed by different practitioners
|
| Steroid Injection | Drug | 8 mg dexamethasone was applied into the tibio-femoral joint with a 22-gauge, 10 cm needle under fluoroscopy. |
|
| 0, 1, 4 and 12 weeks |
| Masala S, Fiori R, Raguso M, Morini M, Calabria E, Simonetti G. Pulse-dose radiofrequency for knee osteoartrithis. Cardiovasc Intervent Radiol. 2014 Apr;37(2):482-7. doi: 10.1007/s00270-013-0694-z. Epub 2013 Aug 14. |
| 21872812 | Result | Karaman H, Tufek A, Kavak GO, Yildirim ZB, Uysal E, Celik F, Kaya S. Intra-articularly applied pulsed radiofrequency can reduce chronic knee pain in patients with osteoarthritis. J Chin Med Assoc. 2011 Aug;74(8):336-40. doi: 10.1016/j.jcma.2011.06.004. Epub 2011 Jul 23. |
| 18211593 | Result | Sluijter ME, Teixeira A, Serra V, Balogh S, Schianchi P. Intra-articular application of pulsed radiofrequency for arthrogenic pain--report of six cases. Pain Pract. 2008 Jan-Feb;8(1):57-61. doi: 10.1111/j.1533-2500.2007.00172.x. No abstract available. |
| D010146 |
| Pain |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |