Intra-articular Pulsed Radiofrequency in Chronic Knee Pain

August 24, 2023 updated by: Burak Erken, Basaksehir Cam & Sakura Şehir Hospital

The Effectiveness of Intra-articular Pulsed Radiofrequency in Patients With Painful Knee Osteoarthritis

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.

Study Overview

Detailed Description

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.

Study Type

Interventional

Enrollment (Actual)

54

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Istanbul, Turkey, 34488
        • Başakşehir Cam and Sakura Şehir Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age > 18 years,
  • Having knee pain persisting for more than 3 months due to knee osteoarthritis (OA),
  • Kellgren-Lawrence Classification grades II and III OA,
  • Giving written and verbal informed consents.

Exclusion Criteria:

  • Patients with a history of undergoing knee surgery and/or receiving any intra-articular knee injection within the previous 6 months,
  • Having a local or systemic infection or a coagulation disorder,
  • Patients who refused to participate in the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Group 1
Intra-articular Pulsed Radiofrequency and Steroid Injection
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.
8 mg dexamethasone was applied into the tibio-femoral joint with a 22-gauge, 10 cm needle under fluoroscopy.
Experimental: Group 2
Only Intra-articular Steroid Injection
8 mg dexamethasone was applied into the tibio-femoral joint with a 22-gauge, 10 cm needle under fluoroscopy.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Numeric Rating Scale
Time Frame: 0, 1, 4 and 12 weeks
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

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Western Ontario and McMaster Universities Arthritis Index
Time Frame: 0, 1, 4 and 12 weeks
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.
0, 1, 4 and 12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Burak Erken, MD, Basaksehir Cam & Sakura Şehir Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 1, 2022

Primary Completion (Actual)

September 30, 2022

Study Completion (Actual)

December 31, 2022

Study Registration Dates

First Submitted

August 24, 2023

First Submitted That Met QC Criteria

August 24, 2023

First Posted (Actual)

August 30, 2023

Study Record Updates

Last Update Posted (Actual)

August 30, 2023

Last Update Submitted That Met QC Criteria

August 24, 2023

Last Verified

August 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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