NCT06479642

Brief Summary

Radiofrequency (RF) application is a treatment method that temporarily blocks pain transmission in the nerve where the application is made, through the heat emitted by radio waves. Genicular nerve ablation with RF has recently become a promising treatment option for the treatment of chronic knee pain. These methods are based on the principle that interfering with the sensory nerve fibers of a painful structure can relieve pain and restore function. Their targets are sensory nerves located on the periosteum before entering the knee joint capsule. The knee joint is innervated by a complex nerve network called genicular nerves, which are articular branches of many nerves such as the femoral, tibial, peroneal, saphenous and obturator nerves. Some of the genicular nerves can be easily localized. The intermedius genicular nerve carries the sensation of subpatellar pain. The intermedius genicular nerve is located under the vastus intermedius muscle, anterior to the distal femoral shaft, just above the bony cortex. Targeting sensory nerves in addition to standard procedures and improving target identification using ultrasound guidance may increase treatment success. The aim of this study is to investigate the effect of ultrasound-guided genicular nerve radiofrequency therapy on pain and knee function by targeting only the traditional 3 genicular nerves and the intermedius genicular nerve in addition to the traditional genicular nerves in advanced gonarthrosis patients with prominent anterior knee pain.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
72

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Sep 2024

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 11, 2024

Completed
17 days until next milestone

First Posted

Study publicly available on registry

June 28, 2024

Completed
2 months until next milestone

Study Start

First participant enrolled

September 1, 2024

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2025

Completed
Last Updated

August 2, 2024

Status Verified

August 1, 2024

Enrollment Period

1 year

First QC Date

June 11, 2024

Last Update Submit

August 1, 2024

Conditions

Keywords

gonarthrosisanterior knee painradiofrequency

Outcome Measures

Primary Outcomes (2)

  • Visual Analog Scale (VAS)

    The VAS used for pain assessment consists of a line drawn in the form of a ruler, and numbers from 0 to 10 (with 0 as "no pain" and 10 as "unbearable pain") were asked to score.

    This evaluation will be made and recorded at the baseline, at the 4th and 12th weeks after the procedure.

  • WOMAC

    WOMAC will be used to determine the functional levels of the patients. The WOMAC consists of 24 items and 3 sub- scales. The pain, stiffness, and physical function subscales were reported as adequate in content and construct validity, as well as responsiveness, in patients with KOA.The total score ranges from 0 to 100. High scores indicate an increase in pain and stiffness, impaired physical function

    This evaluation will be made and recorded at the baseline, at the 4th and 12th weeks after the procedure

Secondary Outcomes (2)

  • Kujala Patellofemoral Scoring System

    This evaluation will be made and recorded at the baseline, at the 4th and 12th weeks after the procedure.

  • Patella Femoral Pain Severity Scale

    This evaluation will be made and recorded at the baseline, at the 4th and 12th weeks after the procedure.

Study Arms (2)

3 nerves protocol

ACTIVE COMPARATOR

tradiational the three-nerve genicular RF Group (3RFG),

Procedure: Genicular nerve pulse radiofrequency ablation 3

4 nerves protocol

ACTIVE COMPARATOR

targeting the intermedius genicular nerve in addition to traditional genicular nerves four-nerve genicular RF Group (4RFG),

Procedure: Genicular nerve pulse radiofrequency ablation 4

Interventions

Ultrasound-guided genicular nerve radiofrequency therapy targets only the traditional 3 genicular nerves

3 nerves protocol

Ultrasound-guided genicular nerve radiofrequency therapy targets only the traditional 3 genicular nerves and the intermedius genicular nerve in addition to the traditional genicular nerves.

4 nerves protocol

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Being a male/female \>18
  • K-L stage 3-4 gonarthrosis patients with anterior knee pain and positive patellofemoral pain tests after physical examination and imaging evaluation
  • Those whose symptoms persist for \>3 months
  • Participating in the study voluntarily

You may not qualify if:

  • Pregnancy
  • History of previous knee surgery
  • Having received physical therapy in the knee area in the last 3 months
  • Having previously undergone RF treatment or having had any therapeutic injection such as steroids or hyaluronic acid within 3 months.
  • Those with pain referred to the waist or hip
  • Patients with neuropathic pain
  • History of tumor, infectious, psychiatric disease, bleeding diathesis
  • Having a history of knee trauma in the last 6 months
  • Those with systemic diseases such as hepatitis and coagulopathy
  • Patients with BMI \>40
  • Leg length difference

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (3)

  • Choi WJ, Hwang SJ, Song JG, Leem JG, Kang YU, Park PH, Shin JW. Radiofrequency treatment relieves chronic knee osteoarthritis pain: a double-blind randomized controlled trial. Pain. 2011 Mar;152(3):481-487. doi: 10.1016/j.pain.2010.09.029. Epub 2010 Nov 4.

  • Guven Kose S, Kirac Unal Z, Kose HC, Celikel F, Akkaya OT. Ultrasound-guided genicular nerve radiofrequency treatment: prospective randomized comparative trial of a 3-nerve protocol versus a 5-nerve protocol. Pain Med. 2023 Jul 5;24(7):758-767. doi: 10.1093/pm/pnad025.

  • McCormick ZL, Cohen SP, Walega DR, Kohan L. Technical considerations for genicular nerve radiofrequency ablation: optimizing outcomes. Reg Anesth Pain Med. 2021 Jun;46(6):518-523. doi: 10.1136/rapm-2020-102117. Epub 2021 Jan 22.

MeSH Terms

Conditions

Osteoarthritis, Knee

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Officials

  • Ayşegül Yaman, specialist

    Ankara Etlik City Hospital

    STUDY CHAIR
  • Başak Mansız Kaplan, assoc. prof.

    Ankara Etlik City Hospital

    STUDY CHAIR

Central Study Contacts

YUNUS BURAK BAYIR, specialist

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The physician performing the evaluation will be blind to which procedure is performed
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Our study was designed as a prospective, single-blind randomized controlled study. Patients who applied to our hospital's PMR outpatient clinic and were diagnosed with advanced stage gonarthrosis with anterior knee pain after physical examination and imaging evaluation will be included in our study. Patients were selected for the first group with the "Research Randomizer" computer program. The patients will be randomized into two groups of 36 people: the three-nerve RF Group (3RFG), the second group will be the four-nerve RF Group (4RFG). The physician performing the evaluation will be blind to which procedure is performed. The demographic and clinical characteristics of the patients will be recorded. Patients will be evaluated using the Visual Analogue Scale (VAS),Patella Femoral Pain Severity Scale and Kujala Patellofemoral Scoring System and WOMAC. These evaluations will be made and recorded at the beginning, at the 4th and 12th weeks after the procedure.
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Yunus Burak Bayır, Principal Investigator

Study Record Dates

First Submitted

June 11, 2024

First Posted

June 28, 2024

Study Start

September 1, 2024

Primary Completion

September 1, 2025

Study Completion

September 1, 2025

Last Updated

August 2, 2024

Record last verified: 2024-08

Data Sharing

IPD Sharing
Will not share