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Prevention of Post-Traumatic Osteoarthritis (OA)

16. marts 2017 opdateret af: Ned Amendola

Pathogenesis-Prevention of Post-Traumatic Osteoarthritis (OA): Effects of Distraction and Motion on OA

Joint injury and trauma dramatically increase the risk of developing osteoarthritis (OA). The purpose of this study is to determine what factors lead to decreased pain, improved joint function, and repair of the joint surface in post-traumatic OA.

Study hypotheses: 1) Ankle motion during distraction will result in clinically significant improvements in Ankle Osteoarthritis Scale scores, SF-36 scores, and improved cartilage thickness distribution over the habitually most heavily loaded portion of the articular surface, as compared to the use of distraction without ankle motion. 2a) Ankles with low geometric surface irregularity and greater range of motion will have better preservation of neo-chondroid tissue (increased normalized cartilage thickness and reduced longitudinal compressive strain in the habitually heavily regions of the articular surface) than those with high surface irregularity. 2b) Low geometric surface irregularity and greater range of motion will have reduced habitual focal or regional contact stress elevation. 3) Joints that have better improvements in Ankle Osteoarthritis Scale scores and improved cartilage thickness distribution over habitually heavily loaded portion of the articular surface will have improved normalization of synovial fluid markers of biosynthetic/degradative activity and oxidative stress.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Little work has been done on the pathogenesis and prevention of post-traumatic OA. The human ankle joint provides a unique opportunity for the study of post-traumatic OA because of the low risk of primary OA and the relatively high risk of post-traumatic OA. This study involves a multidisciplinary approach utilizing both laboratory and clinical research to improve understanding of OA and to develop innovative approaches for preventing and treating this disease. Mechanical distraction involves operative placement of specialized pins and rods to hold the joint in place. Some distraction allows for limited motion of the joint, while other distraction holds the joint immobile. The purpose of this study is to elucidate the mechanical factors that lead to restoration of a cartilaginous articular surface, decreased pain, and improved joint function after mechanical distraction of osteoarthritic joints.

Participants in this study will be randomly assigned to one of two treatment groups. Group A will be treated with mechanical distraction with motion; Group B will be treated with mechanical distraction without motion. Participants will be followed for 28 months and will have 11 study visits. Most of the study visits will occur during the first half of the study. State-of-the-art techniques for clinical assessment, articular surface imaging, biomechanical modeling, and biochemical testing will be used in this study.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

40

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • Iowa
      • Iowa City, Iowa, Forenede Stater, 52242
        • Department of Orthopedics and Rehabilitation, University of Iowa

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

Ikke ældre end 60 år (Barn, Voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Symptomatic isolated ankle OA (unilateral Kellgren grade 3, 4, or 5)
  • Skeletally mature (children included if they have no open growth plates)
  • Failure of less than 1 year nonoperative treatment, including 3 months of continuous treatment with nonsteroidal anti-inflammatory agents and 3 months of unloading treatment (i.e., unloading brace, crutches, cane, walker)

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Group A
Group A participants will be treated with mechanical distraction with motion
Procedure: Ankle distraction permitting motion
External fixator is applied to ankle joint for 85 - 95 days; ankle motion is permitted
Aktiv komparator: Group B
Group B participants will be treated with mechanical distraction without motion
Procedure: Ankle distraction without motion
External fixator is applied to ankel joint for 85 - 95 days; ankle motion is not permitted

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Ankle Osteoarthritis Scale scores
Tidsramme: Two years
Two years
CT data to measure cartilage distribution over the articular surface and synovial fluid markers of biosynthetic/degradative activity and oxidative stress in response to treatment and comparison to clinical and radiographic changes
Tidsramme: Two years
Two years
Improved joint function
Tidsramme: Two Years
Two Years

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Ned Amendola

Samarbejdspartnere

National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)

Efterforskere

  • Ledende efterforsker: Joseph A. Buckwalter, MD, University of Iowa
  • Ledende efterforsker: Thomas D. Brown, PhD, University of Iowa

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.

Generelle publikationer

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

1. november 2002

Primær færdiggørelse (Faktiske)

1. februar 2009

Studieafslutning (Faktiske)

1. februar 2009

Datoer for studieregistrering

Først indsendt

11. februar 2003

Først indsendt, der opfyldte QC-kriterier

12. februar 2003

Først opslået (Skøn)

13. februar 2003

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

17. marts 2017

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

16. marts 2017

Sidst verificeret

1. marts 2017

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • P50AR048939 (U.S. NIH-bevilling/kontrakt)
  • NIAMS-082

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 .

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Betingelser

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