- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT07620145
Anterior Heel Wedge to Treat Flexion Contracture After Total Knee Arthroplasty
26. maj 2026 opdateret af: Abbey Thomas, PhD, University of North Carolina, Charlotte
Efficacy of Anterior Heel Wedge at Reducing Knee Flexion Contracture After Total Knee Arthroplasty: A Pilot Investigation
Total knee arthroplasty (TKA) remains the only treatment for end-stage knee osteoarthritis, whereby the diseased ends of the bones comprising the knee joint are removed and replaced with prosthetic joint components.
Approximately 500,000 of these procedures are performed annually in the United States.
Despite an otherwise successful procedure and post-operative rehabilitation process, about 5% of all individuals will develop a flexion contracture after TKA.
Flexion contracture limits the knee joint range of motion, which has negative impacts on activities of daily living and health-related quality of life.
Standard of care treatment for resolving flexion contracture requires more surgery or, at minimum, more exposure to anesthesia to manipulate the joint and improve range of motion.
The investigators have developed a non-invasive means for resolving flexion contracture, The investigators propose fixing a wedge to the sole of the patient's shoe such that the taller end of the wedge is located near the toes and the shorter end is closer to the heel.
Biomechanically, this forces the individual to make ground contact during walking closer to the heel rather than the toes (which is typically observed in patients with flexion contracture).
By forcing ground contact closer to the heel, patients gradually force their knee to extend (straighten) over time and resolve the flexion contracture.
The aim of this pilot investigation is to test the hypothesis that the anterior wedge worn on the shoe during all walking activities for 4 weeks will reduce the severity of the flexion contracture in patients after TKA.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
8
Fase
- Tidlig fase 1
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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North Carolina
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Charlotte, North Carolina, Forenede Stater, 28269
- UNC Charlotte
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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
Beskrivelse
Inclusion Criteria:
- over the age of 18 years
- underwent primary, unilateral TKA and approved for participation by surgeon
- present with flexion contracture in the operative limb (5 degrees or greater at least 3 months after surgery)
- body mass index <40kg/m^2
Exclusion Criteria:
- underwent revision TKA
- underwent bilateral TKA
- require use of assistive device to walk
- inability to consistently comprehend and repeat back directions, including for reasons of not understanding/speaking English
- current smoker
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
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Eksperimentel: Orthotic
Participants enrolled in this arm wear an anterior heel wedge, in the form of a shoe orthotic, to improve walking and reduce knee flexion contracture.
The wedge is worn continuously on the shoe for 1 month.
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A continuously-worn shoe anterior heel wedge that fits on the under surface of the shoe just under the toe box.
When worn during walking, the anterior heel wedge may help to increase knee joint range of motion and reduce knee flexion contracture in patients after total knee arthroplasty.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Gait biomechanics
Tidsramme: From enrollment to the end of treatment at 4 weeks
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Participants will walk over level ground at a self-selected pace and one equivalent to average older adult walking speed.
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From enrollment to the end of treatment at 4 weeks
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Patient-reported outcomes
Tidsramme: From baseline to the end of the intervention at 4 weeks
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Participants will complete the Knee Osteoarthritis Outcomes Survey (0-100, higher scores are better).
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From baseline to the end of the intervention at 4 weeks
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Patient-reported outcomes
Tidsramme: From baseline to the end of the intervention at 4 weeks
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Participants will complete a Global rating of change (-7 to 7, higher scores indicate more positive changes).
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From baseline to the end of the intervention at 4 weeks
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Patient-reported outcomes
Tidsramme: From baseline to the end of the intervention at 4 weeks
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Participants will complete the VR-12 (0-100 with higher scores indicating more optimal physical and mental well-being) .
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From baseline to the end of the intervention at 4 weeks
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Patient-reported outcomes
Tidsramme: From baseline to the end of the intervention at 4 weeks
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Participants will complete the International Physical Activity Questionnaire- Short Form (0- no max possible, higher scores indicate greater levels of physical activity).
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From baseline to the end of the intervention at 4 weeks
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
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)
16. marts 2023
Primær færdiggørelse (Faktiske)
31. december 2025
Studieafslutning (Faktiske)
31. december 2025
Datoer for studieregistrering
Først indsendt
19. december 2024
Først indsendt, der opfyldte QC-kriterier
26. maj 2026
Først opslået (Faktiske)
2. juni 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
2. juni 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
26. maj 2026
Sidst verificeret
1. maj 2026
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
- 22-1206
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 .
Kliniske forsøg med Total knæarthroplastik (TKA)
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Medical University of WarsawIkke rekrutterer endnuTotal knæarthroplastik (TKA) | Slidgigt (OA) i knæet | Knæsmerter Gigt | Robotisk assisteret ArthroplastyPolen
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Smith & Nephew, Inc.Nor Consult, LLCAfsluttetJourney II XR Total Knee SystemForenede Stater
-
University of FloridaAmerican Shoulder and Elbow SurgeonsRekrutteringPrimær omvendt total skulder ArthroplastyForenede Stater
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Orthopaedic Department of General University Hospital...MicroPort Orthopedics Inc.RekrutteringArtroplastiske komplikationer | Knæarthropati | Robotisk assisteret Arthroplasty | TKA -resultaterGrækenland
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Smith & Nephew, Inc.AfsluttetSikkerhed og ydeevne af Journey II BCS Total Knee System Patient rapporterede resultatmål (JIIPROMS)Journey II BCS Total Knee SystemForenede Stater, Belgien, New Zealand
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Smith & Nephew, Inc.Nor ConsultAfsluttetJourney II CR Total Knee SystemForenede Stater
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Isfahan University of Medical SciencesAfsluttetTotal knæudskiftning | Total knæarthroplastik (TKA)Iran, Islamisk Republik
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DEO NVRekrutteringTotal knæarthroplastik (TKA)Det Forenede Kongerige
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OrthoCarolina Research Institute, Inc.Afsluttet
-
Force TherapeuticsOSI Orthopedics and Sports Medicine; Rehab 360 Knee GliderIkke rekrutterer endnu
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