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Trigger Point Extracorporeal Shock Wave Therapy in Patients With Lateral Epicondylitis (LE-TP-ESWT)

25. juni 2026 oppdatert av: Sueda SOYDAN, Gazi University

The Effect of Extracorporeal Shock Wave Therapy Applied to the Trigger Point on Grip Strength, Visual Analog Scale Score, and Common Extensor Tendon Thickness in Patients With Lateral Epicondylitis

This randomized controlled study evaluates the effect of extracorporeal shock wave therapy applied to the extensor carpi radialis brevis trigger point in patients with lateral epicondylitis. Participants receive active extracorporeal shock wave therapy to the lateral epicondyle region. In addition, one group receives active extracorporeal shock wave therapy to the extensor carpi radialis brevis trigger point, while the other group receives sham extracorporeal shock wave therapy to the trigger point. Pain, grip strength, hand function, and common extensor tendon thickness are assessed before treatment and at week 4.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Lateral epicondylitis is a common tendinopathic condition characterized by pain over the lateral elbow, reduced grip strength, and limitation in upper extremity function. The extensor carpi radialis brevis tendon and the common extensor tendon origin are frequently involved. Myofascial trigger points in the extensor carpi radialis brevis muscle may also contribute to pain and functional impairment.

This prospective randomized controlled single-blind study investigates whether extracorporeal shock wave therapy applied to the extensor carpi radialis brevis trigger point provides additional clinical and ultrasonographic benefit in patients with lateral epicondylitis. Participants are allocated to two parallel groups. Both groups receive active extracorporeal shock wave therapy to the lateral epicondyle region once weekly for three sessions. The intervention group also receives active extracorporeal shock wave therapy to one trigger point in the extensor carpi radialis brevis muscle. The comparator group receives sham extracorporeal shock wave therapy to the same trigger point area.

Outcome assessments are performed at baseline and at week 4. Pain intensity is assessed using the Visual Analog Scale. Grip strength is measured with a Jamar hand dynamometer. Hand function is assessed using the Duruöz Hand Index. Common extensor tendon thickness is measured by ultrasonography. The primary aim is to determine whether active trigger point extracorporeal shock wave therapy provides additional improvement compared with sham trigger point application when both groups receive active treatment to the lateral epicondyle region.

Studietype

Intervensjonell

Registrering (Faktiske)

52

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

    • Ankara
      • Ankara, Ankara, Tyrkia (Türkiye), 06560
        • Gazi University Faculty of Medicine Hospital

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  • Age between 18 and 50 years
  • Clinical diagnosis of lateral epicondylitis
  • Tenderness over the lateral epicondyle
  • Presence of trigger point in the extensor carpi radialis brevis muscle
  • Ability to provide written informed consent

Exclusion Criteria:

  • Peripheral nerve disease involving the ulnar, median, or radial nerve
  • Other elbow pathologies such as instability, arthritis, or dermatologic lesions
  • Radicular pain
  • Previous elbow surgery
  • Platelet-rich plasma injection, stem cell injection, corticosteroid injection, or extracorporeal shock wave therapy to the affected elbow within the previous month
  • Presence of a pacemaker
  • Pregnancy

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Enkelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Active Trigger Point ESWT Group
Participants receive active extracorporeal shock wave therapy to the lateral epicondyle region and active extracorporeal shock wave therapy to one trigger point in the extensor carpi radialis brevis muscle, once weekly for three sessions.
Active extracorporeal shock wave therapy is applied to the lateral epicondyle region in both groups once weekly for three sessions. In the experimental group, active extracorporeal shock wave therapy is also applied to one trigger point in the extensor carpi radialis brevis muscle.
Sham-komparator: Sham Trigger Point ESWT Group
Participants receive active extracorporeal shock wave therapy to the lateral epicondyle region and sham extracorporeal shock wave therapy to one trigger point in the extensor carpi radialis brevis muscle, once weekly for three sessions.
Active extracorporeal shock wave therapy is applied to the lateral epicondyle region in both groups once weekly for three sessions. In the experimental group, active extracorporeal shock wave therapy is also applied to one trigger point in the extensor carpi radialis brevis muscle.
Sham extracorporeal shock wave therapy is applied to one trigger point in the extensor carpi radialis brevis muscle using a sham applicator that produces a similar sound but does not deliver therapeutic shock wave energy.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Common Extensor Tendon Thickness
Tidsramme: Baseline and week 4
Common extensor tendon thickness is measured by ultrasonography using a linear probe with the elbow flexed at 90 degrees and the forearm in mid-supination. Measurements are performed on a longitudinal image at the lateral epicondyle region, perpendicular to the tendon fibers. The change from baseline to week 4 is evaluated
Baseline and week 4

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Pain Intensity Assessed by Visual Analog Scale
Tidsramme: Baseline and week 4
Pain intensity is assessed using a 10-cm Visual Analog Scale. A score of 0 indicates no pain and a score of 10 indicates the worst pain.
Baseline and week 4
Change in Grip Strength
Tidsramme: Baseline and week 4
Grip strength is measured using a Jamar hand dynamometer. Measurements are performed with the participant seated, the shoulder adducted, the elbow flexed at 90 degrees, the forearm in neutral position, and the wrist in neutral position. Three consecutive measurements are obtained from the affected side, and the mean value is used for analysis. The change from baseline to week 4 is evaluated.
Baseline and week 4
Change in Functional Disability Assessed by the Duruöz Hand Index
Tidsramme: Baseline and week 4
functional disability is assessed using the Duruöz Hand Index. The scale includes 18 items evaluating difficulties in daily activities involving hand use. Total scores range from 0 to 90, with higher scores indicating greater disability. The change from baseline to week 4 is evaluated.
Baseline and week 4

Samarbeidspartnere og etterforskere

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Sponsor

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

21. oktober 2024

Primær fullføring (Faktiske)

24. juni 2026

Studiet fullført (Faktiske)

24. juni 2026

Datoer for studieregistrering

Først innsendt

5. juni 2026

Først innsendt som oppfylte QC-kriteriene

5. juni 2026

Først lagt ut (Faktiske)

10. juni 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

29. juni 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

25. juni 2026

Sist bekreftet

1. juni 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • LE-ESWT-ECRB-2026
  • KD24/04 (Annen identifikator: Başkent University Clinical Research Ethics Committee)

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

IPD-planbeskrivelse

Individual participant data will not be shared due to privacy and ethical restrictions.

Legemiddel- og utstyrsinformasjon, studiedokumenter

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Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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