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Betamethasone vs Dextrose Injections in Trigger Finger

26 juli 2026 bijgewerkt door: Merve Yıldız, Istanbul University - Cerrahpasa

Comparison of Ultrasound-Guided Betamethasone and Dextrose Injections in the Treatment of Trigger Finger: A Randomized Controlled Trial

This study aims to compare the effectiveness of ultrasound-guided betamethasone and dextrose injections in patients with trigger finger.

Trigger finger is a common hand condition characterized by pain, clicking, and locking of the finger due to tendon entrapment at the A1 pulley. Corticosteroid injections are widely used as a first-line treatment; however, they may be associated with potential side effects.

Dextrose injection is an alternative treatment that may promote tissue healing through regenerative mechanisms. However, there is limited high-quality evidence regarding its effectiveness in trigger finger.

In this randomized controlled trial, patients will be assigned to receive either betamethasone or dextrose injection under ultrasound guidance. The primary outcome will be pain intensity measured by the Numeric Rating Scale (NRS). Secondary outcomes will include triggering severity, hand function, grip and pinch strength, and fine motor skills evaluated over a 12-week follow-up period.

The results of this study may help determine whether dextrose injection is a safe and effective alternative to corticosteroid treatment in trigger finger.

Studie Overzicht

Toestand

Werving

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

Trigger finger, also known as stenosing tenosynovitis, is a common hand disorder characterized by pain, catching, and locking of the affected digit due to impaired gliding of the flexor tendon at the A1 pulley. It can significantly impair hand function and quality of life.

Corticosteroid injections are widely accepted as an effective first-line treatment for trigger finger. However, potential adverse effects such as skin atrophy, tendon rupture, and systemic effects, particularly in patients with metabolic disorders, have led to increasing interest in alternative treatment options.

Dextrose injection has emerged as a potential alternative treatment modality in musculoskeletal disorders. However, there is limited high-quality evidence evaluating its effectiveness in trigger finger.

The aim of this prospective, randomized controlled trial is to compare the clinical effectiveness of ultrasound-guided betamethasone injection and dextrose injection in patients with trigger finger.

Eligible participants aged 18 to 75 years with clinically diagnosed trigger finger of at least 4 weeks' duration will be enrolled. Patients will be randomly assigned to one of two groups. One group will receive an ultrasound-guided injection of 1 ml lidocaine and 1 ml betamethasone, while the other group will receive an ultrasound-guided injection of 1 ml lidocaine and 1 ml 30% dextrose solution (resulting in a final concentration of 15% dextrose). All injections will be performed under sterile conditions at the A1 pulley level.

The study is designed as a randomized, participant-, injector-, and assessor-blinded trial. The injector will be blinded to the injectate using opaque-covered syringes. Randomization will be performed by an independent researcher who will not be involved in outcome assessment.

The primary outcome of the study is the change in pain intensity, assessed using the Numeric Rating Scale (NRS).

Secondary outcomes include triggering severity assessed using the Modified Quinnell classification, functional status assessed using the Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) questionnaire, grip and pinch strength, and fine motor skills evaluated with the Purdue Pegboard test.

Outcome assessments will be conducted at baseline, 1 hour, 2 weeks, 4 weeks, and 12 weeks after injection, according to the predefined schedule of each outcome measure.

This study is expected to provide high-quality evidence regarding the effectiveness of dextrose injection as a potential alternative to corticosteroid treatment in trigger finger.

Studietype

Ingrijpend

Inschrijving (Geschat)

42

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Locaties

  • Turkije (Türkiye)
      • Istanbul, Turkije (Türkiye), 34098
        • Werving
        • Istanbul University - Cerrahpasa, Cerrahpasa Faculty of Medicine
        • Contact:
        • Hoofdonderzoeker:
          • Merve Yıldız, MD

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen
  • Oudere volwassene

Accepteert gezonde vrijwilligers

Nee

Beschrijving

Inclusion Criteria:

  • Age between 18 and 75 years
  • Clinical diagnosis of trigger finger
  • Presence of symptoms for at least 4 weeks

Exclusion Criteria:

  • Previous surgery on the affected finger
  • Injection treatment to the affected finger within the previous 3 months
  • Active local or systemic infection
  • Active malignancy
  • Active inflammatory rheumatic disease (e.g., rheumatoid arthritis, ankylosing spondylitis, polymyalgia rheumatica, vasculitis)
  • Uncontrolled diabetes mellitus and/or uncontrolled hypertension
  • Autoimmune connective tissue diseases (e.g., systemic lupus erythematosus, antiphospholipid syndrome, systemic sclerosis, Sjögren syndrome, polymyositis, dermatomyositis, adult-onset Still's disease)
  • Coagulopathy that increases the risk of injection procedures
  • Pregnancy
  • Known allergy or hypersensitivity to lidocaine, betamethasone, or dextrose
  • Mental impairment or severe psychiatric disorder that may interfere with study participation or informed consent

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Verdrievoudigen

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Actieve vergelijker: Betamethasone Injection
Participants in this arm will receive an ultrasound-guided injection of 1 ml lidocaine combined with 1 ml betamethasone at the A1 pulley level for the treatment of trigger finger.
Geneesmiddel: Betamethasone
Ultrasound-guided injection of 1 ml lidocaine combined with 1 ml betamethasone administered at the A1 pulley level for the treatment of trigger finger.
Andere namen:
  • Injectie met corticosteroïden
Actieve vergelijker: Dextrose Injection
Participants in this arm will receive an ultrasound-guided injection of 1 ml lidocaine combined with 1 ml 30% dextrose solution (final concentration 15%) at the A1 pulley level for the treatment of trigger finger.
Ander: Dextrose Injection
Ultrasound-guided injection of 1 ml lidocaine combined with 1 ml 30% dextrose solution resulting in a final concentration of 15% dextrose, administered at the A1 pulley level for the treatment of trigger finger.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change in pain intensity assessed by Numeric Rating Scale (NRS)
Tijdsspanne: Baseline, 1 hour, 2 weeks, 4 weeks, and 12 weeks
Pain intensity will be evaluated using the 11-point Numeric Rating Scale (NRS), where 0 indicates no pain and 10 indicates worst imaginable pain.
Baseline, 1 hour, 2 weeks, 4 weeks, and 12 weeks

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change in triggering severity assessed by Modified Quinnell classification
Tijdsspanne: Baseline, 2 weeks, 4 weeks, and 12 weeks
Triggering severity will be evaluated using the Modified Quinnell classification system.
Baseline, 2 weeks, 4 weeks, and 12 weeks
Change in hand function assessed by QuickDASH
Tijdsspanne: Baseline, 2 weeks, 4 weeks, and 12 weeks
Functional status will be assessed using the Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) questionnaire.
Baseline, 2 weeks, 4 weeks, and 12 weeks
Change in grip strength
Tijdsspanne: Baseline, 2 weeks, 4 weeks, and 12 weeks
Grip strength will be measured using a hand dynamometer.
Baseline, 2 weeks, 4 weeks, and 12 weeks
Change in pinch strength
Tijdsspanne: Baseline, 2 weeks, 4 weeks, and 12 weeks
Pinch strength will be measured using a pinch meter.
Baseline, 2 weeks, 4 weeks, and 12 weeks
Change in fine motor skills assessed by Purdue Pegboard test
Tijdsspanne: Baseline, 4 weeks, and 12 weeks
Fine motor skills and manual dexterity will be evaluated using the Purdue Pegboard test.
Baseline, 4 weeks, and 12 weeks

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Istanbul University - Cerrahpasa

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Algemene publicaties

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

30 juni 2026

Primaire voltooiing (Geschat)

1 april 2027

Studie voltooiing (Geschat)

1 mei 2027

Studieregistratiedata

Eerst ingediend

27 juni 2026

Eerst ingediend dat voldeed aan de QC-criteria

27 juni 2026

Eerst geplaatst (Werkelijk)

2 juli 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

28 juli 2026

Laatste update ingediend die voldeed aan QC-criteria

26 juli 2026

Laatst geverifieerd

1 juli 2026

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • TF-Dextrose-2026

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

ONBESLIST

Beschrijving IPD-plan

The investigators have not yet determined whether de-identified individual participant data (IPD) will be shared. If data sharing is approved after completion of the study and publication of the primary results, the de-identified dataset underlying the reported outcomes may be made available. Any decision regarding data sharing will be based on institutional policies, ethical approval, participant confidentiality, and applicable regulations.

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

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