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Acetabular Shell Positioning Using Patient Specific Instruments

9. juli 2015 opdateret af: Wael Barsoum, The Cleveland Clinic

Comparison of Acetabular Shell Position Using Patient Specific Instruments vs. Standard Surgical Instruments: A Randomized Clinical Trial

The proposed study is a double-blinded randomized controlled trial comparing patient specific instruments with solely standardized instruments and pre-operative planning used for the placement of the acetabular cup prosthesis used in total hip arthroplasty.

The investigators will enroll 36 patients who have consented to total hip arthroplasty for treatment of hip pathology. This treatment is a standard of care. Patients will receive standard of care pre- and post-operative care and placement of standard of care implants all of which are commercially available and FDA approved for general use for the clinical indications used in these patients. All patients will receive a pre-operative CT scan for surgical planning and comparison with post-operative CT scan. The difference in intervention between the groups will be the creation and use of patient specific instruments from the pre-operative planning session. These instruments will be used for placement of an indexing peripheral guide wire to direct acetabular preparation and placement of the shell assisting standard surgical instruments. Print-offs from the pre-operative plan will also be used in the treatment group.

The post-operative scan will be performed within two weeks of the surgery for both the treatment and control groups. The investigators will analyze the difference in acetabular shell placement (acetabular version and abduction angle) from the pre-operatively planned CT scan. These differences will be compared between the control and experimental groups.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

No further details to report.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

36

Fase

  • Fase 1

Kontakter og lokationer

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

Studiesteder

  • Forenede Stater
    • Ohio
      • Cleveland, Ohio, Forenede Stater, 44195
        • The Cleveland Clinic

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

18 år til 85 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

Subjects to be included in this protocol will be adult males and females of all races and socioeconomic status meeting the following criteria:

  • Primary, unilateral direct lateral or posterior THA
  • 18 to 85 years old at time of surgery
  • Able to get a pre- and post-operative CT scan at the Cleveland Clinic

Exclusion Criteria:

  • The following criteria will exclude subjects from this protocol:
  • Significant metal in the joint that results in metal artifact on the pre--operative CT scan, thereby compromising the ability to visualize the acetabulum on the pre-operative simulator.
  • Pregnancy
  • Incarceration
  • Condition deemed by physician or medical staff to be non-conducive to patient's ability to complete the study, or a potential risk to the patient's health and well-being.

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: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Acetabular positioning system
Pre-operative planning through 3D software with design and fabrication of patient specific instruments for placement of a guide pin to be used to aid in bone preparation for insertion of an acetabular cup in total hip arthroplasty
Procedure: Acetabular positioning system
Pre-operative planning through 3D software with design and fabrication of patient specific instruments for placement of a guide pin to be used to aid in bone preparation for insertion of an acetabular cup in total hip arthroplasty
Ingen indgriben: Standard total hip arthroplasty
Each surgeon will use their standard methods of pre-operative planning using pre-operative x-rays, and complete the procedure using standard surgical instruments for total hip arthroplasty.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Difference between planned and actual values of Abduction and Version.
Tidsramme: Through 2 weeks after surgery.
Through 2 weeks after surgery.

Samarbejdspartnere og efterforskere

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

Sponsor

The Cleveland Clinic

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. januar 2011

Primær færdiggørelse (Faktiske)

1. april 2012

Studieafslutning (Faktiske)

1. april 2012

Datoer for studieregistrering

Først indsendt

7. februar 2013

Først indsendt, der opfyldte QC-kriterier

12. februar 2013

Først opslået (Skøn)

15. februar 2013

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

10. juli 2015

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

9. juli 2015

Sidst verificeret

1. juli 2015

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • CCF 10-1138

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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Sponsorer og samarbejdspartnere

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Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner