MARS MRI i revision THA med keramisk lårbenshoved og titanium ærme
Metalartefakt-reduktionssekvens MR i revision af total hoftearthroplastik med et keramisk lårbenshoved og titanium-hylster
Revision total hip replacement using a ceramic head utilizes a titanium sleeve which introduced another articulation into the system that may lead to a local soft tissue reaction. The purpose of this study is to determine the frequency, size and types of MRI documented local tissue reactions in individuals doing well after a revision total hip replacement and ceramic bearing surface that utilizes a titanium sleeve.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Metal-on-metal total hip arthroplasty (THA) were heralded as a solution for two of the most common problems in hip arthroplasty in the last decade, instability and osteolysis. Unfortunately, their failures have led to diminished enthusiasm for this bearing surface. Adverse local tissue reactions (ATLRs) have been well documented as a means of pain and failure in this population. A recent report revealed that the most commonly used bearing surface in total hip arthroplasty, metal-on-polyethylene, may have up to a 28% incidence of MRI abnormalities in asymptomatic hips. Revision THA using a ceramic head utilizes a titanium sleeve which introduced another articulation into the system that may lead to a local soft tissue reaction. The purpose of this study is to determine the frequency, size and types of MRI documented local tissue reactions in asymptomatic individuals after a revision THA and ceramic bearing surface that utilizes a titanium sleeve. To our knowledge, this has not been studied previously and may provide important baseline features of this diagnostic tool with this particular bearing surface. We hypothesize that there will be fluid collections in a small but clinically significant portion of asymptomatic patients.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Kontakter og lokationer
Studiesteder
-
-
Colorado
-
Denver, Colorado, Forenede Stater, 80210
- Colorado Joint Replacement
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Patients who received a revision total hip surgery utilizing a ceramic femoral head with a titanium sleeve
Beskrivelse
Inclusion Criteria:
- Patients who received a revision total hip surgery utilizing a ceramic femoral head with a titanium sleeve
- Patient whose age ranges from 18-99
- Patients who are not experiencing groin pain, thigh pain, or pain with ROM of the hip
- Patients who are at least 2 years after a revision THA
- Acetabular implant (cup) was placed in the appropriate position
- Patients with a Harris Hip Score of >90
Exclusion Criteria:
- Patients who do not meet the above criteria
- Patients unable to have an MRI (i.e. pacemaker, metal implants or issues with claustrophobia requiring sedation)
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: CASE_ONLY
- Tidsperspektiver: PROSPECTIVE
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Revision Total Hip Arthroplasty
Patients who received a revision total hip surgery utilizing a ceramic femoral head with a titanium sleeve |
metal artifact reduction sequence (MARS) MRI to assess for fluid collections, ATLRs or other abnormalities Labs to look at titanium levels in blood Labs to look at cobalt levels in blood Labs to look at chromium levels in blood |
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
MARS MRI abnormalities
Tidsramme: 2 Years Post Revision Total Hip Replacement
|
Local Tissue Reactions or Fluid collections on the MARS MRI Scan |
2 Years Post Revision Total Hip Replacement
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Titanium Lab Value
Tidsramme: 2 Years Post Revision Total Hip Replacement
|
Titanium levels in blood |
2 Years Post Revision Total Hip Replacement
|
|
Chromium Lab Value
Tidsramme: 2 Years Post Revision Total Hip Replacement
|
Chromium levels in blood |
2 Years Post Revision Total Hip Replacement
|
|
Cobalt Lab Value
Tidsramme: 2 Years Post Revision Total Hip Replacement
|
Cobalt levels in blood |
2 Years Post Revision Total Hip Replacement
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Jason M Jennings, MD, Colorado Joint Replacement
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 1969400
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
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