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Noninflammatory Degenerative Joint DiseaseNCT02220478

Signature Acetabular Posterior/Lateral Data Collection

A study testing Posterior Lateral Approach Total Hip Arthroplasty in people with Noninflammatory Degenerative Joint Disease and Avascular Necrosis, run by Zimmer Biomet.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The primary purpose of this pilot study is to evaluate the accuracy of cup placement between two instrumentation technologies: Cutting Guide and Conventional Instrumentation. Read more about this study

Who is it for?
Ages 20 to 75 yearsHealthy volunteers can take part
What is being tested?
Posterior Lateral Approach Total Hip Arthroplasty
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
24 participants
Where
No sites listed yet
Study dates
Nov 2014to Jul 2016
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Subjects with one of the following indication:
  • Noninflammatory degenerative joint disease including osteoarthritis and avascular necrosis.
  • Rheumatoid arthritis.
  • Correction of functional deformity.
  • Treatment of non-union, femoral neck fracture, and trochanteric fractures of the proximal femur with head involvement, unmanageable by other techniques.
  • Additional inclusion criteria include:
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  • Subjects requiring primary total hip arthroplasty
  • 20 to 75 years of age
  • Subjects with a diagnosis of osteoarthritis or traumatic arthritis
  • Subjects willing to return for follow-up evaluations.
  • Subjects who can read, understand study information and give written consent without representation of a legally authorized representative.
  • Bilateral patients are included if staged.
  • Only Posterior Lateral Approach can be used for inclusion in this study

Who cannot join

  • Exclusion criteria should be in accordance with Contraindications for the Biomet primary acetabular cup.
  • Absolute contraindications include: infection, sepsis, osteomyelitis, and failure of a previous joint replacement.
  • Additional contraindications include:
  • Subjects whose bony structure deviates substantially from the general norm sufficiently to require non-standard implants. Specific examples of these are total dislocation of the hip, severe coxa vera deformity, and severe forms of multiple epiphyseal dysplasia
  • Subjects unable to cooperate with and complete the study
  • Dementia and inability to understand and follow instructions
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  • Neurological conditions affecting movement
  • Pregnancy
  • Additional exclusion criteria include:
  • Surgical approach other than posterior lateral.
  • Simultaneous bilateral procedures

About this study

Official title: A Prospective Controlled Study on Signature Anterior Posterior/Lateral Acetabular Cup Placement System in Total Hip Arthroplasty

The primary purpose of this pilot study is to evaluate the accuracy of cup placement between two instrumentation technologies: Cutting Guide and Conventional Instrumentation.

Read the detailed description

Using a more advanced surgical technique may assist surgeons and patients in a variety of ways including identifying a specific-size for the prosthesis prior to surgery, increasing operating room efficiency, and reducing the number of traditional instruments needed. This may reduce cost associated with the instrument inventory and instrument sterilization. Operating time may also be reduced, potentially decreasing the patient's risk of infection. However, before these hypotheses can be tested, it is important to fully understand the efficacy and accuracy of Signature Custom Guides and their use in Total Hip Arthroplasty.

Being tested
Posterior Lateral Approach Total Hip Arthroplasty
Keywords
hip, Signature
Medical subject headings
Osteonecrosis, Arthritis, Rheumatoid

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Posterior Lateral Approach Total Hip ArthroplastyDevice

    All patients enrolled in the study are indicated for a total hip replacement, and will receive this replacement from the surgeon via a Posterior Lateral surgical approach.

Study groups in NCT02220478
Study groupRoleWhat they receive
Signature Cutting GuidesActive comparatorPatients indicated for a Posterior Lateral THA utilizing non implantable Signature Cutting Guides during surgery.
Receives: Device: Posterior Lateral Approach Total Hip Arthroplasty
Conventional InstrumentationActive comparatorPatients indicated for a Posterior Lateral THA utilizing non implantable Conventional Instrumentation during surgery.
Receives: Device: Posterior Lateral Approach Total Hip Arthroplasty

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Operative Room Time

    Average operative time

    Measured: Surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Aug 2014 (estimated)
  2. Study startNov 2014
  3. Primary completionJul 2016
  4. Study completionJul 2016

Why it stopped: Unable to engage surgeons to participate in the study

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02220478
Sponsor's protocol ID
ORTHO.CR.GH24
Status last verified
Sep 2022
First submitted
18 Aug 2014
Last updated
25 Oct 2022
Data monitoring committee
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing Posterior Lateral Approach Total Hip Arthroplasty in people with Noninflammatory Degenerative Joint Disease and Avascular Necrosis, run by Zimmer Biomet.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 13 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 25 Oct 2022. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 25 Oct 2022). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Operative Room Time (time frame: Surgery). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Oct 2022.

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