The Predictive Value of Ultrasonographic Quadriceps Muscle Parameters for Genicular Nerve Block Outcomes in Knee Osteoarthritis
20. august 2026 opdateret af: Marmara University
The Role of Quadriceps Muscle Architecture Parameters in Predicting the Success of Genicular Nerve Block in Patients With Chronic Knee Osteoarthritis Pain
The goal of this observational study is to learn whether thigh muscle structure can help predict pain relief after a genicular nerve block in people with knee osteoarthritis. A genicular nerve block is an injection used to reduce pain signals from the knee.
The main questions are:
- Are muscle thickness, fiber length, and fiber angle linked to pain relief after the procedure?
- Are these muscle measurements linked to changes in physical function and quality of life?
Participants are adults aged 50 to 80 with long-term pain from osteoarthritis in one knee. They are already scheduled to receive a genicular nerve block as part of their regular medical care. The study does not assign participants to receive this procedure.
Before the procedure, researchers will use ultrasound to measure the vastus lateralis muscle in the thigh. Participants will also answer questions about pain, daily function, and quality of life. Researchers will repeat these assessments after 1 hour, 3 weeks, and 3 months. Pain relief will be considered successful when pain is at least half as severe as it was before the procedure.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
41
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
-
Pendik
-
Istanbul, Pendik, Tyrkiet (Türkiye), 34899
- Marmara University Pendik Training and Research Hospital
-
-
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Ingen
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
Adults aged 50 to 80 years with unilateral chronic knee pain due to clinically and radiologically confirmed knee osteoarthritis.
Participants had Kellgren-Lawrence grade 3 or 4 osteoarthritis, had not responded adequately to conservative treatments, and were already scheduled to undergo genicular nerve block as part of routine clinical care.
Beskrivelse
Inclusion Criteria:
- Age between 50 and 80 years
- Unilateral symptomatic knee osteoarthritis
- Chronic knee pain for at least 3 months
- Clinical and radiographic confirmation of knee osteoarthritis
- Kellgren-Lawrence grade 3 or 4 knee osteoarthritis
- Inadequate clinical response despite analgesic therapy and physical therapy
- Clinical indication for genicular nerve block
Exclusion Criteria:
- History of surgery involving the knee region
- Bilateral symptomatic knee osteoarthritis
- Intra-articular knee injection within the previous 3 months
- Systemic disease that could affect study assessments
- Systemic or local infection
- Coagulation disorder
- Failure to provide written informed consent
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
Intervention / Behandling |
|---|---|
|
Patients With Chronic Knee Osteoarthritis Undergoing Ultrasound- Guided Genicular Nerve Block
|
Ultrasound-guided genicular nerve block targeting the superomedial, superolateral, and inferomedial genicular nerves was performed as part of routine clinical management for chronic knee osteoarthritis.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in Pain Intensity Assessed by the Numeric Rating Scale (NRS)
Tidsramme: Baseline , 3 weeks, and 3 months
|
Pain intensity will be assessed using an 11-point Numeric Rating Scale ranging from 0 (no pain) to 10 (worst imaginable pain).
Changes from baseline will be evaluated following ultrasound-guided genicular nerve block.
Lower scores indicate lower pain intensity.
|
Baseline , 3 weeks, and 3 months
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Baseline Vastus Lateralis Muscle Thickness
Tidsramme: Baseline
|
Vastus lateralis muscle thickness assessed by ultrasound and recorded in millimeters (mm).
|
Baseline
|
|
Baseline Vastus Lateralis Pennation Angle
Tidsramme: Baseline
|
Description: Vastus lateralis pennation angle assessed by ultrasound and recorded in degrees (°).
|
Baseline
|
|
Baseline Vastus Lateralis Fascicle Length
Tidsramme: Baseline
|
Description: Vastus lateralis fascicle length assessed by ultrasound and recorded in millimeters (mm).
|
Baseline
|
|
Change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Score
Tidsramme: Baseline, 3 weeks, and 3 months after the procedure
|
Description: Pain, stiffness, and physical function related to knee osteoarthritis will be assessed using the 24-item WOMAC questionnaire.
The total score ranges from 0 to 96, with higher scores indicating greater pain, stiffness, and functional impairment.
Changes from baseline will be evaluated following ultrasound-guided genicular nerve block.
|
Baseline, 3 weeks, and 3 months after the procedure
|
|
Change in Health-Related Quality of Life Assessed by the EQ-5D
Tidsramme: Baseline, 3 weeks, and 3 months after the procedure
|
Description: Health-related quality of life will be assessed using the EQ-5D questionnaire.
Responses will be converted into an EQ-5D index score, where higher scores indicate better health status.
A score of 1 represents full health, 0 represents a health state equivalent to death, and negative scores represent health states considered worse than death.
Changes from baseline will be evaluated following ultrasound-guided genicular nerve block.
|
Baseline, 3 weeks, and 3 months after the procedure
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
1. juni 2025
Primær færdiggørelse (Faktiske)
1. april 2026
Studieafslutning (Faktiske)
1. april 2026
Datoer for studieregistrering
Først indsendt
17. august 2026
Først indsendt, der opfyldte QC-kriterier
20. august 2026
Først opslået (Faktiske)
24. august 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
24. august 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
20. august 2026
Sidst verificeret
1. juni 2025
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 09.2019.1051
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
INGEN
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Ingen
Studerer et amerikansk FDA-reguleret enhedsprodukt
Ingen
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .